Invoicing plan without messages for the vendor
I would like to use periodic invoicing plans for specific vendors. But when I try to generate credit memos for the vendors (MRIS), the system keeps telling me that no message records for the vendors could be found and no documents are created (error message M8447).
The help offers two possible solutions for this:
1. Create message records for the vendors (which I think I did, but it did not change anything)
2. Turn off the error message in customizing if I do not need any messages sent to the vendors. Unfortunatelly, it does not tell me how to turn the message off.
Could anyone please tell me where I can turn off the error message?
Thanks in advance