How To Fix 0S156 - Structure SQLTDDINFO has changed

SAP Error Message - Details

• Message type: E = Error

• Message class: 0S - Messages for the SQL trace

• Message number: 156

• Message text: Structure SQLTDDINFO has changed

What causes this issue?

The structure SQLDDINFO contains fields which the system did not expect
to find.

System Response

Processing continues after the error message.

How to fix this error?

Check structure SQLDDINFO. More information may be required from the
ABAP Dictionary. If this is the case, the program has to be modified.

Procedure for System Administrators

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 0S156 - Structure SQLTDDINFO has changed ?

  The SAP error message 0S156 Structure SQLTDDINFO has changed typically indicates that there is a mismatch or inconsistency in the structure of the SQLTDDINFO table or data structure in the SAP system. This can occur due to various reasons, such as changes in the database schema, updates to the SAP system, or inconsistencies in the transport of changes between different environments (e.g., development, testing, production).
  Causes:
  
  Database Schema Changes: If there have been changes to the underlying database schema that affect the SQLTDDINFO structure, this error may occur.
  Transport Issues: If changes were transported from one system to another and the transport did not complete successfully, it could lead to inconsistencies.
  SAP System Upgrade: An upgrade to a newer version of SAP might have introduced changes to the structure that are not compatible with the existing data.
  Custom Development: Custom developments or modifications that affect the SQLTDDINFO structure can also lead to this error.
  
  Solutions:
  
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and notes. Sometimes, SAP releases notes that address specific issues related to structure changes.
  Re-transport Changes: If the issue is related to transport inconsistencies, try re-transporting the changes or checking the transport logs for errors.
  Database Consistency Check: Perform a consistency check on the database to ensure that all structures are in sync. This can often be done using transaction codes like SE14 (Database Utility) or SE11 (Data Dictionary).
  Review Custom Code: If there are custom developments that interact with the SQLTDDINFO structure, review the code to ensure it is compatible with the current structure.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide guidance based on the specific version and configuration of your SAP system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE14 (Database Utility), and ST22 (Dump Analysis) to investigate the issue further.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on how to resolve it.
  Documentation: Review the documentation for your specific SAP version to understand any changes that may have been introduced in recent updates or upgrades.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.