How To Fix AD379 - Key fields were changed/renamed; update the DB table/data

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 379

• Message text: Key fields were changed/renamed; update the DB table/data

What causes this issue?

The table structure has changed. Key fields have been added or deleted,
the order of key fields has changed or fields in the table key have
been renamed. Therefore, activation of the table has been cancelled.
You must adjust the database table for a TRANSP-type table and convert
any existing data. Existing data in POOL/CLUSTER type tables must also
be converted.

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 TRANSP type table
(i.e. activate the ABAP/4 Dictionary table, adjust the database table,
and convert any existing data) and to convert data for a
POOL/CLUSTER-type table.
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 AD379 - Key fields were changed/renamed; update the DB table/data ?

  The SAP error message AD379 indicates that key fields in a database table have been changed or renamed, and as a result, the database table or data needs to be updated to reflect these changes. This error typically arises during the activation of a data dictionary object (like a table or view) or when trying to perform operations that involve the affected table.
  Cause:
  
  Key Field Changes: The key fields of a database table have been modified. This could involve renaming a key field or changing its data type.
  Inconsistent Data Dictionary: The data dictionary (DDIC) may not be in sync with the actual database structure, leading to inconsistencies.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the transport did not include the necessary updates to the database, this error can occur.
  
  Solution:
  
  Check the Data Dictionary: Verify the changes made to the key fields in the data dictionary. Ensure that the changes are correctly reflected in the database.
  Activate the Table: If the error occurs during activation, try to activate the table or data dictionary object again. This can sometimes resolve the issue.
  Database Update: If the key fields have been changed, you may need to update the database table to reflect these changes. This can involve:
  
  Using transaction SE14 (Database Utility) to adjust the database table.
  Running the "Adjust Database" option to synchronize the database with the data dictionary.
  
  
  Check Transport Requests: If the changes were made in a development environment and transported, ensure that the transport request included all necessary changes and that they were imported correctly.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  
  Related Information:
  
  Transaction Codes: 
  
  SE11: Data Dictionary (to view and modify table definitions).
  SE14: Database Utility (to adjust database tables).
  
  
  SAP Notes: Search for SAP Notes related to AD379 for specific guidance or patches that may address the issue.
  Backup: Always ensure that you have a backup of your data before making changes to the database structure.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.