How To Fix MC075 - Database index & for table & must be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 075

• Message text: Database index & for table & must be converted

What causes this issue?

An index can be created in the database for matchcodes of update type I
in order to support the matchcode search. This index is created for the
table providing the first field of the matchcode ID which is not a
client field. The fields of this table which immediately follow this
field are included as fields in the index.
Such an index was already created for the matchcode ID in
the database. This index is no longer suitable due to a change in the
matchcode ID, e.g. because of a change in the field level.

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?

Convert the index using the database utility (SE14). Go directly
to the database utility by selecting <LS>Database Utility -> Index</>
in the menu <LS>Tools</> of the matchcode ID maintenance screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC075 - Database index & for table & must be converted ?

  The SAP error message MC075 indicates that a database index for a specific table needs to be converted. This typically occurs when there are changes in the structure of the table or when the database system has been upgraded or modified in a way that requires the indexes to be rebuilt or converted to align with the new structure.
  Cause:
  
  Table Structure Changes: If the structure of the table has been modified (e.g., fields added, removed, or changed), the existing indexes may no longer be valid or optimal.
  Database Upgrade: After upgrading the database or the SAP system, certain indexes may need to be converted to be compatible with the new version.
  Data Dictionary Changes: Changes in the data dictionary (DDIC) can also lead to the need for index conversion.
  
  Solution:
  To resolve the MC075 error, you typically need to convert the affected database index. Here are the steps to do this:
  
  
  Transaction SE14: Use transaction SE14 (Database Utility) to manage database objects.
  
  Enter the name of the table that is causing the error.
  Choose the option to "Convert" the indexes.
  Follow the prompts to complete the conversion process.
  
  
  
  Transaction SE11: Alternatively, you can use transaction SE11 (Data Dictionary) to check the table definition and indexes.
  
  Display the table and check the indexes.
  If necessary, you can delete and recreate the indexes.
  
  
  
  Check for Notes: Sometimes, SAP provides specific notes or patches related to this issue. Check the SAP Support Portal for any relevant notes that may provide additional guidance or fixes.
  
  
  Backup: Before making changes, ensure that you have a backup of your data and indexes, especially in a production environment.
  
  
  Consult Documentation: Review SAP documentation or consult with your SAP Basis team for any specific procedures or considerations related to your system version.
  
  
  Related Information:
  
  SAP Notes: Look for SAP Notes related to MC075 for any specific instructions or known issues.
  Database Administration: Ensure that your database administration team is aware of the changes, as they may need to assist with the conversion process.
  Testing: After conversion, perform thorough testing to ensure that the application behaves as expected and that performance is not adversely affected.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.