Update src/streamlit_app.py

src/streamlit_app.py

@@ -786,6 +786,9 @@ elif st.session_state.page == 'viewer':
             if line_items:
                 df = pd.DataFrame(line_items)
                 
+                # Set index to start from 1 instead of 0
+                df.index = range(1, len(df) + 1)
+                
                 # Convert amount fields to numeric
                 amount_fields = ['Invoice_amount_FCY', 'Amount_paid_for_each_invoice', 
                                'Outstanding_balance_FCY', 'Discounts_taken_FCY', 
@@ -817,7 +820,8 @@ elif st.session_state.page == 'viewer':
                     hide_index=False
                 )
                 
-                # Convert back to string
+                # Convert back to string and reset index to 0-based for storage
+                edited_df.index = range(len(edited_df))
                 for field in amount_fields:
                     if field in edited_df.columns:
                         edited_df[field] = edited_df[field].apply(lambda x: str(x) if pd.notna(x) else '')