How To Fix GA064 - System error: Tables T811M and T811J differ

SAP Error Message - Details

• Message type: E = Error

• Message class: GA - Allocations

• Message number: 064

• Message text: System error: Tables T811M and T811J differ

What causes this issue?

Both internal tables for assessment/distribution T811J and T811M do not
match (table &V1&, field &V2&).

System Response

The transaction terminates.

How to fix this error?

Inform your system administrator. Under no circumstances should you
alter these two tables by yourself.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GA064 - System error: Tables T811M and T811J differ ?

  The SAP error message GA064, which states "System error: Tables T811M and T811J differ," typically indicates a discrepancy between two related tables in the SAP system. This error is often associated with the Asset Accounting (FI-AA) module, where T811M and T811J are tables that store information related to asset management.
  Cause:
  The error usually arises due to one of the following reasons:
  
  Data Inconsistency: There may be inconsistencies in the data between the two tables, which can occur due to incomplete transactions, system errors during data updates, or issues during data migration.
  Custom Modifications: If there have been custom modifications or enhancements to the standard SAP processes, these could lead to discrepancies.
  Database Issues: Problems with the database, such as corruption or failed updates, can also lead to this error.
  
  Solution:
  To resolve the GA064 error, you can follow these steps:
  
  
  Check for Inconsistencies:
  
  Use transaction codes like SE11 to view the structure of the tables T811M and T811J.
  Compare the entries in both tables to identify discrepancies.
  
  
  
  Run Consistency Checks:
  
  Use transaction OAM1 (for Asset Accounting) to run consistency checks on the asset data. This can help identify and correct inconsistencies.
  
  
  
  Rebuild Tables:
  
  If the inconsistency is severe, you may need to rebuild the affected tables. This can be done using specific SAP programs or reports designed for this purpose. Consult with your SAP Basis or technical team for assistance.
  
  
  
  Check for Custom Code:
  
  Review any custom code or enhancements that may affect asset accounting processes. Ensure that they are functioning correctly and not causing data discrepancies.
  
  
  
  Database Maintenance:
  
  If you suspect database issues, perform database maintenance tasks. This may include running database consistency checks or restoring from a backup if necessary.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that address this specific error. SAP Notes often provide patches or specific instructions for resolving known issues.
  
  
  
  Consult SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide guidance based on the specific details of your system and configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAM1, SE11, and SE38 (for executing reports).
  Documentation: Review SAP documentation related to Asset Accounting and table structures for a better understanding of how T811M and T811J are used.
  Backup: Always ensure that you have a recent backup of your data before performing any major changes or repairs to the database.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the GA064 error in your SAP system.