How To Fix AD377 - Key format changed; update the data

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 377

• Message text: Key format changed; update the data

What causes this issue?

Activation of the table has been cancelled. The table key has changed.
The table of type POOL/CLUSTER contains data. Before activating the
table, you must unload the data and then reload it again afterwards. If
the key has changed, ensure that no two records in the table are
identical with respect to the new key.

System Response

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

How to fix this error?

Use the online conversion function to convert a POOL/CLUSTER-type table
(i.e. unload the data, activate the ABAP/4 Dictionary table, adjust the
database table, and reload the data).
INCLUDE ADIC-DB-UTILITIES
INCLUDE ADIC-UPDATEFORCE

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD377 - Key format changed; update the data ?

  The SAP error message AD377, which states "Key format changed; update the data," typically occurs when there is a change in the key structure of a database table or a data object that is being accessed. This can happen due to various reasons, such as changes in the underlying data model, updates to the SAP system, or modifications made to the table structure.
  Cause:
  
  Change in Key Structure: The primary cause of this error is that the key fields of a database table have been modified. This could involve adding, removing, or changing the data type of key fields.
  Data Inconsistency: If the application is trying to access data that was created with an old key format, it may lead to inconsistencies and trigger this error.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production) and the data was not updated accordingly, this error may arise.
  
  Solution:
  
  
  Update the Data: The primary solution is to update the affected data to conform to the new key format. This may involve:
  
  Running a program or transaction that updates the data in the affected tables.
  Using transaction codes like SE14 (Database Utility) to adjust the database structure and data.
  If applicable, use the relevant SAP report or transaction to regenerate or reprocess the data.
  
  
  
  Check for Data Consistency: Use tools like transaction SE11 (Data Dictionary) to check the structure of the table and ensure that the data is consistent with the new key format.
  
  
  Review Change Logs: If you have access to change logs or transport logs, review them to understand what changes were made to the key structure and identify any necessary actions.
  
  
  Consult Documentation: Check SAP Notes or documentation related to the specific version of SAP you are using. There may be specific instructions or patches available that address this issue.
  
  
  Contact SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP support for assistance. They may provide specific guidance based on your system configuration and the nature of the changes made.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that may provide additional context or solutions for the AD377 error.
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SE37 (Function Builder) for managing database objects and data.
  Testing: After making changes, ensure to test the affected functionality thoroughly to confirm that the issue has been resolved and that no new issues have been introduced.
  
  By following these steps, you should be able to address the AD377 error and ensure that your SAP system operates smoothly.