SAP Message C0806 - Select a message category to continue processing

Diagnosis
The process instruction you are maintaining is a repeated data request.
You can allocate more than one message category to repeated datarequests on the current screen. You must then maintain the followingscreens separately for each message category. However, you have notselected a message category.
INCLUDE NA_FU_NO OBJECT DOKU ID TX LANGUAGE EN

Procedure
RESET N1
Select the message category for which you want to enter data.
Go to the next screen.