How To Fix GT528 - Table loses key fields or key fields are shortened

SAP Error Message - Details

• Message type: E = Error

• Message class: GT - Database utilities

• Message number: 528

• Message text: Table loses key fields or key fields are shortened

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GT528 - Table loses key fields or key fields are shortened ?

  The SAP error message GT528 indicates that there is an issue with the key fields of a table in the context of a database operation. This error typically arises when the key fields of a table are either being lost or shortened, which can lead to data integrity issues. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  Key Field Changes: The error can occur if there are changes made to the key fields of a table, such as reducing the length of a key field or removing a key field altogether.
  Data Dictionary Changes: If there are modifications in the Data Dictionary (DDIC) that affect the structure of the table, it can lead to this error.
  Inconsistent Data Model: If the data model is inconsistent, such as having a different definition of the key fields in the application layer compared to the database layer, this error can occur.
  Transport Issues: If changes are transported from one system to another (e.g., from development to production) and the key fields are not properly aligned, it can trigger this error.
  
  Solution:
  
  Check Table Definition: Review the table definition in the Data Dictionary (transaction SE11) to ensure that the key fields are correctly defined and have not been altered inappropriately.
  Restore Key Fields: If key fields have been removed or shortened, consider restoring them to their original definitions. This may involve reverting changes or modifying the table structure.
  Consistency Check: Perform a consistency check on the database and application layers to ensure that they are aligned. This can be done using transaction SE14 (Database Utility).
  Transport Management: If the issue arose due to transport, ensure that the transport requests are correctly configured and that all necessary objects are included in the transport.
  Data Migration: If the table structure has changed and data needs to be migrated, ensure that the data is migrated in a way that maintains the integrity of the key fields.
  
  Related Information:
  
  Transaction Codes: 
  
  SE11: Data Dictionary (to check table definitions)
  SE14: Database Utility (to check consistency)
  SE80: Object Navigator (to view related objects)
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. You can search for GT528 in the SAP Support Portal.
  Documentation: Review SAP documentation regarding table key fields and data integrity to understand best practices for managing table structures.
  
  Conclusion:
  The GT528 error is primarily related to the integrity of key fields in a table. By carefully reviewing the table definitions, ensuring consistency across systems, and managing transports effectively, you can resolve this error and maintain the integrity of your SAP database. If the problem persists, consider reaching out to SAP support for further assistance.