You must supply an unique id for your Accounting Flexfield ((Null))

Hi Team,

While importing AR invoices, I’m encountering the following error:

“You must supply a unique ID for your Accounting Flexfield ((Null))”

I’ve already referred to [Doc ID 415542.1] – Auto Invoice Error: You must supply a unique ID for your Accounting Flexfield ((Null)) – but it didn’t help resolve the issue.

I've attached the RA_INTERFACE_DISTRIBUTIONS_ALL data for reference. All setup configurations appear to be in place.

Requesting your support in identifying the root cause. If no solution is available, please let me know whether I should raise an SR.