Fields "Reported by" & "Message Processor" empty in TA Solution_Manager

Hello again!

I have the following problem:

When I create a service message via TA NOTIF_CREATE or via Help->Support Message it is displayed in the service desk view of TA Solution_Manager.

However the fields "Reported by" & "Message Processor" are empty and won't fill even after editing the message.

I hope any of you experts has an idea, how to solve this problem. (If it is possible, instructions suitable a beginner would be great 😊)

Thanks in advance

best regards

Gerold