SAP Note 28034 - ME21: Loop during 'Cancel' on accnt assignmt scrn

Symptom:

1. Create purchase order with reference to the purchase requisition. If the account assignment data in the purchase requisition is incomplete, the program stays on the account assignment popup.
If you choose 'Cancel' there, the program loops and a termination occurs after some time.

2. Create, change or display an order assigned to an account with confirmation control. If you choose the list function for confirmations from the overview screen, you can not return from there with F3.

Cause and prerequisites

Error

Solution
1) Corrected in Release 3.0B.
2) Corrected in Release 3.0D.