SAP ABAP Message Class AH Message Number 571 (Not possible to maintain before &1)
Hierarchy
IS-UT (Software Component) SAP Utilities/Telecommunication
   IS-U-BI (Application Component) Contract Billing
     EE20 (Package) IS-U: Billing
Attribute
Message class AH  
Short Description IS-U billing (master data)    
Message Number 571  
Documentation status      
Authorization check Error Message      
Changed On    
Message Text
Not possible to maintain before &1
Help Document

Diagnosis

You have attempted to maintain the operand values before . However, this is not permitted because the values for the operand were updated before via a billing.

System Response

The changes before are not transferred because the periods updated via the billing must not be changed.

Procedure

Check whether the reason you attemped to change the operand values can be accomplished by another method.

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