SAP Message 3G621 - Payment posting is not active for country &1 for the date &2

Diagnosis
Posting of the payment for your country grouping is not activated at thespecified time.

System Response
The report is cancelled.

Procedure
Enter the date in the view T77S0 for the switch PPMxx of group POST,from which you want to post the payments using report H99_POST_PAYMENT.