How To Fix AH604 - Backbilling group &1 in step &2 is inconsistent

AH604 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 604

• Message text: Backbilling group &1 in step &2 is inconsistent

What causes this issue?

One of the following errors has occurred in schema step &V2&:
You use backbilling group &V1& for an <DS:DE.BACKSTART>execute
backbilling</> indicator. However, there are no schema steps to be
backbilled for this group. Please use a different group in step &V1&,
or allocate at least one additional schema step to this group.
You use backbilling group &V1& for an <DS:DE.BACKEXEC01>allocate
backbilling</> indicator or <DS:DE.BACKCANC01>reverse backbilling</>
indicator. However, there is no schema step that initiates this
backbillling. Please use a different group in step &V1&, or insert a
schema step that initiates backbilling for this group.

System Response

The schema is inconsistent and cannot be saved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH604 - Backbilling group &1 in step &2 is inconsistent ?

  The SAP error message AH604 indicates that there is an inconsistency in the backbilling group for a specific step in the billing process. This error typically arises in the context of billing and invoicing, particularly when dealing with complex billing scenarios such as those found in utilities or service industries.
  
  Cause:
  The inconsistency can be caused by several factors, including:
  
  
  
  Configuration Issues: The backbilling group may not be properly configured in the system. This could involve missing or incorrect settings in the billing configuration.
  
  
  Data Integrity Problems: There may be inconsistencies in the master data or transactional data related to the billing process. For example, if the backbilling group assigned to a customer or contract is not valid or does not match the expected values.
  
  
  Custom Development: If there are custom enhancements or modifications in the billing process, they may not be handling the backbilling group correctly.
  
  
  Changes in Business Rules: If there have been recent