update

backend/app/main.py

@@ -227,6 +227,7 @@ async def download_sequences(file_id: str = Query(...), db: Session = Depends(ge
         
         # Group sequences by contact
         contacts = {}
+        max_email_number = 0  # Track the maximum email number across all contacts
         for seq in sequences:
             contact_key = f"{seq.sequence_id}"
             if contact_key not in contacts:
@@ -242,19 +243,22 @@ async def download_sequences(file_id: str = Query(...), db: Session = Depends(ge
                 }
             contacts[contact_key]['subjects'][seq.email_number] = seq.subject
             contacts[contact_key]['bodies'][seq.email_number] = seq.email_content
+            # Track the maximum email number
+            if seq.email_number > max_email_number:
+                max_email_number = seq.email_number
         
         # Create CSV in memory
         # Use QUOTE_MINIMAL to properly quote fields with newlines for Smartlead
         output = io.StringIO()
         writer = csv.writer(output, quoting=csv.QUOTE_MINIMAL)
         
-        # Write header with all subject/body columns
+        # Write header - only include columns up to the maximum email number found
         header = ['First Name', 'Last Name', 'Email', 'Company', 'Title', 'Product']
-        for i in range(1, 11):
+        for i in range(1, max_email_number + 1):
             header.extend([f'Subject {i}', f'Body {i}'])
         writer.writerow(header)
         
-        # Write rows (one row per contact with all subjects/bodies)
+        # Write rows (one row per contact with subjects/bodies up to max_email_number)
         # Preserve newlines in email bodies for proper formatting in Smartlead
         for contact in contacts.values():
             row = [
@@ -265,7 +269,7 @@ async def download_sequences(file_id: str = Query(...), db: Session = Depends(ge
                 contact['title'],
                 contact['product']
             ]
-            for i in range(1, 11):
+            for i in range(1, max_email_number + 1):
                 subject = contact['subjects'].get(i, '') or ''
                 body = contact['bodies'].get(i, '') or ''