SAP ABAP Message Class AJ Message Number 021 (Output operand of variant can only be updated once)
Hierarchy
IS-UT (Software Component) SAP Utilities/Telecommunication
   IS-U-BI (Application Component) Contract Billing
     EE20 (Package) IS-U: Billing
Attribute
Message class AJ  
Short Description Billing program    
Message Number 021  
Documentation status      
Authorization check Error Message      
Changed On    
Message Text
Output operand of variant can only be updated once
Help Document

Diagnosis

The variant was set via the control so that only positive differences are permitted. In this case, an update can be carried out in a subsequent operand only.

System Response

Procedure

Read about how you can avoid this case in the variant documentation.

History
Last changed on/by 20110810  SAP 
SAP Release Created in