How to Generate Cost Accounting Events when error is Accounting flexfield could not be validated?

Hi,

When we run Generate Cost Accounting Events, we see the program picks up about 50  records and then lists about 200 exceptions with rejection reason 'Accounting flexfield could not be validated'.

When I run the 'EXC: Transaction Exception Details by PA Period' there are a lot of exceptions.

Problem is we have to restart the accounting events program many times to resolve all exceptions.

This would suggest that the exceptions in the report are not rreal exceptions but are classified as such.

We upgraded to 12.1.3 last week, somehow this issue will have something to do with that.

My question is how to generate events for all these error records at the same time? Why is it picking up so few in one run?