The system displays an error message: Manual invoice processing not possible, reference invoice locked. when trying to create credit memo fro released invoice.
Reproducing the Issue
- Go to the work center Customer Invoicing.
- Choose the View Invoice Documents.
- Take a random released invoice ABC. (ABC represent invoice ID)
- Choose the button Follow-Up select Manual Credit Memo from drop down.
- Error message appears: Manual invoice processing not possible;referenced data not valid.
The reason for the error message is in invoice ABC, the concerned item is a credit memo item which is allowed behavior. But you cannot create a follow up credit memo on an item that is already a credit memo item.
This is a s ystem standard behavior.
KBA , AP-CI , Customer Invoice Processing , How To