Hi folks,
I am working on a NAV to Business Central migration for a client who is using the Data Exchange Framework for EFT file generation (Canadian localization — CA EFT DEFAULT).
In the Data Exchange Definition, specifically in the DETAIL line field mappings, I can see several custom fields (5000-series) mapped against Table 10304 (EFT Staging Table). I need to trace back where these custom fields are getting their values from before the EFT file is exported.
Important constraint: I do not have access to the NAV code due to license limitations, so I need to investigate this through the UI only. I have already checked Vendor Bank Account (Table 288), Vendor (Table 23), Customer (Table 18), and Company Information (Table 79) but could not find anything related.
I understand there is likely a codeunit or event subscriber responsible for populating Table 10304 — but I need to first identify the source of these fields before diving into the code side.
Has anyone traced custom Data Exchange fields back to their source without code access? Any UI-based approach or pointers to the right area would be greatly appreciated!
