How To Fix AJ798 - Billing period from sec. installation &1 does not match prim. inst. &2

SAP Error Message - Details

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 798

• Message text: Billing period from sec. installation &1 does not match prim. inst. &2

What causes this issue?

Billing documents from secondary installation &V1&
are required for billing
primary installation &V2&.
These billing documents must correspond to the
billing period of the primary installation. This means that the
unprocessed billing documents of the secondary installation must be
within the interval &v3& to &v4&. This interval is made up of the
billing period of the primary installation and the
<DS:DE.LMARGIN_SUB>interval of the secondary installation before and
after the meter reading date</>. However, secondary installation &v1&
contains an unprocessed billing document that
is not in this interval. This can be a real billing document or - if
secondary installation &v1& is
<DS:DE.DISTREL>distribution-relevant</> - a billing document
created by the simulation of a billing order.

System Response

The billing procedure for primary installation &V2& is cancelled.

How to fix this error?

There can be several causes for this:
You entered a periodic meter reading result for the secondary
installation and the meter reading date of this result is too far away
from the meter reading of the primary installation. This means it
exceeds the predefined meter reading intervals. If this is the case,
change the meter reading date of the secondary installation.
You entered a delayed move-in for the secondary installation. The
move-in is in a period for which the primary installation has already
been billed. Therefore, the start of the billing documents billing
period is too far back in the past.
The delayed move-in might reveal that the previous billing of the
primary installation was incorrect. If this is the case, you must
reverse the previous billing of the primary installation. Otherwise you
have to delete installation &v1& from the installation group for
the period for which the primary installation has already been billed.

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AJ798 - Billing period from sec. installation &1 does not match prim. inst. &2 ?

  The SAP error message AJ798 indicates a mismatch between the billing periods of a secondary installation and its primary installation in the context of SAP IS-U (Industry Solution for Utilities). This error typically arises when there is an inconsistency in the billing periods defined for the installations involved.
  Cause:
  
  Mismatch in Billing Periods: The primary installation (e.g., a main meter) and the secondary installation (e.g., a sub-meter or a related service) have different billing periods set in their configuration.
  Configuration Errors: Incorrect configuration in the installation data or billing settings can lead to this error.
  Data Migration Issues: If data was migrated from another system or if there were changes made to the installations, it could result in inconsistencies.
  
  Solution:
  
  
  Check Installation Data: 
  
  Go to the installation data for both the primary and secondary installations.
  Verify the billing periods set for both installations. They should match.
  
  
  
  Adjust Billing Periods:
  
  If you find a mismatch, adjust the billing period of either the primary or secondary installation to ensure they are the same.
  This can typically be done in the installation master data in the SAP IS-U module.
  
  
  
  Review Configuration:
  
  Ensure that the configuration settings for billing periods are correctly set up in the system.
  Check if there are any specific rules or settings that might be causing the mismatch.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the installations to identify any other potential issues that might be causing the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to installation data and billing periods for further guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like EAM1 (for installation data) or EAM2 (for installation changes) to access and modify installation data.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  User Roles: Ensure that you have the necessary authorizations to view and modify installation data in the SAP system.
  
  By following these steps, you should be able to resolve the AJ798 error and ensure that the billing periods for the installations are consistent.