How To Fix GU921 - Differences were found between the tables -> Long text

SAP Error Message - Details

• Message type: E = Error

• Message class: GU - FI-SL utilities

• Message number: 921

• Message text: Differences were found between the tables -> Long text

What causes this issue?

There were differences between the tables you compared.
These differences could be due to the following:
Error in the definition of the field movements for the conversion.
An example would be if you forgot to enter a field to be converted in
the conversion field movements (for example, BUKRS -> RBUKRS).
Intended difference
An example would be if you changed a specific field using a user exit.
Program error during the conversion
An internal program error occurred during the conversion.

How to fix this error?

Check the first two above-mentioned causes. If none of these
possibilities applies, consult your system administrator.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GU921 - Differences were found between the tables -> Long text ?

  The SAP error message GU921 indicates that there are differences between the tables in the system, which typically occurs during a data consistency check or when performing certain operations that require data integrity between related tables. This error can arise in various contexts, such as during the execution of a transaction, data migration, or system upgrades.
  Cause:
  
  Data Inconsistency: The most common cause is that the data in the related tables is not consistent. This can happen due to incomplete data updates, failed transactions, or manual data manipulation.
  Configuration Issues: Incorrect configuration settings in the system can lead to discrepancies between tables.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), inconsistencies may arise if the transport was not executed correctly.
  Database Issues: Corruption or issues in the database can also lead to discrepancies between tables.
  
  Solution:
  
  Data Consistency Check: Use transaction codes like SE14 (Database Utility) or SE11 (Data Dictionary) to check the consistency of the tables involved. You can also use transaction code SLG1 to check the application log for more details.
  Reconcile Data: Identify the specific differences between the tables and reconcile the data. This may involve updating, deleting, or inserting records to ensure consistency.
  Check Configuration: Review the configuration settings related to the tables in question to ensure they are set up correctly.
  Transport Management: If the issue arose after a transport, check the transport logs and ensure that all necessary objects were included and transported correctly.
  Database Repair: If you suspect database corruption, you may need to run database repair tools or consult with your database administrator.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on resolving it.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE14, SE11, SLG1, and others that can help in diagnosing and resolving the issue.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it involves complex data structures or critical business processes.
  Documentation: Review SAP documentation related to data consistency and integrity checks for best practices and guidelines.
  
  By following these steps, you should be able to identify the cause of the GU921 error and implement a solution to resolve the discrepancies between the tables.