Journal entries not created for "Receipt Accrual - Period End Process" job 11.5.10.2

Hi gurus,

In of our books Month end close, the expected journal entry was created after re-running "Receipt Accrual - Period End Process". We are investigating what is the root cause for the failure to generate the journal on the 1 ^st attempt.

In the first attempt Purchasing Accrual journal entries were not created for Receipt Accruals.

Thanks in advance.

Leo