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VI_MC_0001
VISA
contact
Testing
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0002
VISA
contact
CVM
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0003
VISA
contactless
Issuer Scripts
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0004
VISA
contact
Field 55
Why did the terminal queue a reversal after approval? (Scenario 4)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0005
VISA
contact
Terminal Configuration
What causes '6985 Conditions of use not satisfied' during VERIFY? (Scenario 5)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0006
VISA
contact
Field 55
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0007
VISA
contact
Settlement
Why did the transaction fail after GENERATE AC? (Scenario 7)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0008
VISA
contactless
Integration
Why is Field 55 causing ARQC verification failures at the issuer? (Scenario 8)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0009
VISA
contact
Issuer Scripts
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0010
VISA
contactless
Terminal Configuration
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0011
VISA
contact
Settlement
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0012
VISA
contact
Security
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0013
VISA
contactless
Issuer Scripts
Why did the transaction fail after GENERATE AC? (Scenario 13)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0014
VISA
contactless
Issuer Scripts
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0015
VISA
contact
CVM
Why did the terminal prompt for signature instead of PIN for a contactless transaction? (Scenario 15)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0016
VISA
contact
Keys & Certificates
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0017
VISA
contact
Testing
What causes '6985 Conditions of use not satisfied' during VERIFY? (Scenario 17)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0018
VISA
contactless
Security
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0019
VISA
contact
Reversals
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0020
VISA
contact
Card Communication
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0021
VISA
contact
Integration
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0022
VISA
contactless
Keys & Certificates
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0023
VISA
contactless
Terminal Configuration
What causes '6985 Conditions of use not satisfied' during VERIFY? (Scenario 23)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0024
VISA
contact
Keys & Certificates
Why does the contactless flow go online while contact remains offline? (Scenario 24)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0025
VISA
contactless
Brand-specific
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0026
VISA
contact
Transaction Flow
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0027
VISA
contactless
Brand-specific
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0028
VISA
contactless
Card Communication
Why did the terminal queue a reversal after approval? (Scenario 28)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0029
VISA
contactless
APDU
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0030
VISA
contact
Brand-specific
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0031
VISA
contact
Card Communication
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0032
VISA
contact
Security
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0033
VISA
contact
Keys & Certificates
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0034
VISA
contact
Keys & Certificates
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0035
VISA
contactless
Brand-specific
What causes '6985 Conditions of use not satisfied' during VERIFY? (Scenario 35)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0036
VISA
contactless
Brand-specific
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0037
VISA
contactless
APDU
Why did the transaction fail after GENERATE AC? (Scenario 37)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0038
VISA
contactless
Card Communication
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0039
VISA
contact
Settlement
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0040
VISA
contactless
Security
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0041
VISA
contact
CVM
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0042
VISA
contactless
Field 55
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0043
VISA
contactless
Brand-specific
Why did the transaction fail after GENERATE AC? (Scenario 43)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0044
VISA
contact
Keys & Certificates
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0045
VISA
contactless
Reversals
Why did the terminal prompt for signature instead of PIN for a contactless transaction? (Scenario 45)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0046
VISA
contactless
Brand-specific
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0047
VISA
contactless
Settlement
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0048
VISA
contact
APDU
Why does the contactless flow go online while contact remains offline? (Scenario 48)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0049
VISA
contactless
Issuer Scripts
Why did the transaction fail after GENERATE AC? (Scenario 49)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0050
VISA
contact
Risk Management
Why is Field 55 causing ARQC verification failures at the issuer? (Scenario 50)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0051
VISA
contactless
APDU
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0052
VISA
contactless
Field 55
Why did the terminal queue a reversal after approval? (Scenario 52)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0053
VISA
contact
Issuer Scripts
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0054
VISA
contact
CVM
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0055
VISA
contact
Settlement
Why did the transaction fail after GENERATE AC? (Scenario 55)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0056
VISA
contact
Brand-specific
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0057
VISA
contact
Security
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0058
VISA
contact
Reversals
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0059
VISA
contactless
Testing
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0060
VISA
contact
Issuer Scripts
Why does the contactless flow go online while contact remains offline? (Scenario 60)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0061
VISA
contactless
Settlement
Why did the transaction fail after GENERATE AC? (Scenario 61)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0062
VISA
contact
Terminal Configuration
Why is Field 55 causing ARQC verification failures at the issuer? (Scenario 62)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0063
VISA
contactless
Field 55
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0064
VISA
contact
Certification Logs
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0065
VISA
contact
Testing
What causes '6985 Conditions of use not satisfied' during VERIFY? (Scenario 65)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0066
VISA
contactless
Security
Why does the contactless flow go online while contact remains offline? (Scenario 66)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0067
VISA
contact
Issuer Scripts
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0068
VISA
contactless
APDU
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0069
VISA
contactless
Certification Logs
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0070
VISA
contact
Field 55
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0071
VISA
contactless
Terminal Configuration
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0072
VISA
contactless
Reversals
Why does the contactless flow go online while contact remains offline? (Scenario 72)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0073
VISA
contact
Card Communication
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0074
VISA
contactless
Issuer Scripts
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0075
VISA
contactless
Integration
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0076
VISA
contactless
Field 55
Why did the terminal queue a reversal after approval? (Scenario 76)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0077
VISA
contactless
Security
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0078
VISA
contactless
Certification Logs
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0079
VISA
contactless
Brand-specific
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0080
VISA
contact
Keys & Certificates
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0081
VISA
contact
Certification Logs
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0082
VISA
contactless
APDU
Why did the terminal queue a reversal after approval? (Scenario 82)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0083
VISA
contact
Risk Management
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0084
VISA
contact
Terminal Configuration
Why does the contactless flow go online while contact remains offline? (Scenario 84)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0085
VISA
contactless
Security
Why did the transaction fail after GENERATE AC? (Scenario 85)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0086
VISA
contactless
Security
Why is Field 55 causing ARQC verification failures at the issuer? (Scenario 86)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0087
VISA
contact
Transaction Flow
Why did the terminal prompt for signature instead of PIN for a contactless transaction? (Scenario 87)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0088
VISA
contact
Field 55
Why did the terminal queue a reversal after approval?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0089
VISA
contactless
Terminal Configuration
What causes '6985 Conditions of use not satisfied' during VERIFY?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0090
VISA
contactless
Terminal Configuration
Why does the contactless flow go online while contact remains offline? (Scenario 90)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0091
VISA
contact
Risk Management
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0092
VISA
contactless
CVM
Why is Field 55 causing ARQC verification failures at the issuer?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0093
VISA
contactless
Risk Management
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0094
VISA
contactless
Risk Management
Why did the terminal queue a reversal after approval? (Scenario 94)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0095
VISA
contactless
Terminal Configuration
What causes '6985 Conditions of use not satisfied' during VERIFY? (Scenario 95)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0096
VISA
contactless
CVM
Why does the contactless flow go online while contact remains offline?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0097
VISA
contact
Reversals
Why did the transaction fail after GENERATE AC?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0098
VISA
contactless
Issuer Scripts
Why is Field 55 causing ARQC verification failures at the issuer? (Scenario 98)
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
VI_MC_0099
VISA
contactless
Transaction Flow
Why did the terminal prompt for signature instead of PIN for a contactless transaction?
{ "details": [ "Step 1: Verify APDU trace for missing or malformed PDOL/GET PROCESSING OPTIONS exchange.", "Step 2: Parse the Field 55 TLV payload and ensure mandatory tags are present and correctly encoded (e.g., 9F26, 9F36, 95, 5F2A).", "Step 3: Check terminal unpredictable number generation entropy (9F...
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