How To Fix MQ652 - Problems when converting table &1 using database structure &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MQ - Messages for Euro Changeover Package

• Message number: 652

• Message text: Problems when converting table &1 using database structure &2

What causes this issue?

Problems (warning, error, termination) occurred when converting table
&v1& using database structure &v2&.

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?

Analyze the following problem messages.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MQ652 - Problems when converting table &1 using database structure &2 ?

  The SAP error message MQ652 indicates that there is a problem when converting a table (denoted as &1) using a specific database structure (denoted as &2). This error typically arises during database operations, such as data migration, upgrades, or when changes are made to the database schema.
  Causes:
  
  Inconsistent Data Structure: The database structure may have changed, and the existing data in the table does not conform to the new structure.
  Data Type Mismatches: There may be a mismatch between the data types defined in the database and the data types expected by the application.
  Missing Fields: The conversion process may be expecting certain fields that are missing in the current table structure.
  Corrupted Data: There could be corrupted or invalid data in the table that prevents successful conversion.
  Database Locking Issues: If the table is locked by another process, it may lead to conversion problems.
  
  Solutions:
  
  Check Database Structure: Verify that the database structure matches the expected structure. You can do this by comparing the current table definition with the expected definition.
  Data Consistency Check: Run consistency checks on the data in the table to identify any discrepancies or corrupted entries.
  Adjust Data Types: Ensure that the data types in the table match those defined in the database structure. You may need to alter the table to correct any mismatches.
  Field Validation: Check for any missing fields that are required for the conversion process and add them if necessary.
  Database Locks: Ensure that no other processes are locking the table during the conversion. You may need to wait for other transactions to complete or terminate them if necessary.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary) to check the table structure and SE14 (Database Utility) to manage database objects.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with the error message and any relevant logs.
  Backup: Always ensure that you have a backup of your data before making any changes to the database structure or performing data migrations.
  
  By following these steps, you should be able to diagnose and resolve the MQ652 error effectively.