How To Fix AH789 - Variant &1 updates from correction period to periodic billing period

AH789 - Overview

• Message type: E = Error

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

• Message number: 789

• Message text: Variant &1 updates from correction period to periodic billing period

What causes this issue?

Variant &V1& performs a special update in step &V2& with operand &V3&:
If the period-end billing rate is used to backbill step &V2&, the
variant provides the steps of the period-end billing rate.
If step &V2& is backbilled from periodic billing, the variant provides
the steps of the periodic billing period.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

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 AH789 - Variant &1 updates from correction period to periodic billing period ?

  The SAP error message AH789 indicates that there is an issue with the update of a variant from a correction period to a periodic billing period. This typically occurs in the context of billing and invoicing processes within SAP, particularly in the SAP Convergent Charging (SAP CC) or SAP Convergent Invoicing (SAP CI) modules.
  
  Cause:
  The error can arise due to several reasons, including:
  
  Incorrect Configuration: The variant may not be properly configured for the billing period, leading to inconsistencies in the data.
  Data Integrity Issues: There may be issues with the data integrity, such as missing or incorrect entries in the billing documents or related tables.
  Timing Issues: The update process may be trying to execute at a time when the system is not ready to process the changes, such as during a closed billing period.
  Authorization Issues: The user may not have the necessary authorizations to perform the update.
  
  
  Solution:
  To resolve the AH789 error, you