Resolve Error: "You Have Entered an Invalid Field Value XX for the Following Field: custrecord_8858_process_user" upon Generating Bill Payment File with Custom Role

User with custom role is trying to generate a Bill Payment file in Electronic Payments and receives the following error. This is reproducible when the custom role does not allow access to the Employee's Subsidiary.

Prerequisites:

1. Company Bank Details with Subsidiary A
2. Vendor in Subsidiary A
3. Vendor Prepayment for this Vendor in Subsidiary A
4. Employee with Subsidiary B
5. Adjust Custom EFT Role - so it can access Subsidiary A (but not Subsidiary B)

Example:

1. Login with custom role
2. Navigate to Payments > Bank File Generation > Generate Bill Payment File
3. EFT Transaction Type: Select Vendor Prepayments
4. Company Bank Account: Select Bank Account with Subsidiary A
5. Select Transaction Saved Search: Select Search
6. Click Generate File
7. Result: Notice (SuiteSctipt)
   {type":"error.SuiteScriptError","name":"INVALID_FLD_VALUE","message":"You have entered an Invalid Field Value XX for the following field: custrecord_8858_process_user","stack":...

The possibility to process Bill Payment File using a custom role is limited when the Employee's Subsidiary is different from custom role, Company Bank, Vendor and transaction Subsidiaries.

Whenever user submit a PFA, it will capture the Subsidiary of the Company Bank. So if user does not have the subsidiary access of the Company Bank, the error will be displayed.

This is currently a standard expected behavior.

Solution is to make sure the Subsidiaries assigned on the custom role, Employee, Company Bank, Vendor and transaction are aligned.