How To Fix MC371 - Table type change not allowed for base table of view &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 371

• Message text: Table type change not allowed for base table of view &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MC371 - Table type change not allowed for base table of view & ?

  The SAP error message MC371, which states "Table type change not allowed for base table of view &," typically occurs when there is an attempt to change the table type of a base table that is being used in a view. This error is related to the data dictionary in SAP and indicates that the system does not allow modifications to the table type of a base table that is part of a view definition.
  Cause:
  
  Base Table in Use: The base table is currently being used in one or more views, and SAP restricts changes to the table type to maintain data integrity and consistency.
  Table Type Change: You may be trying to change the table type from a transparent table to a pooled or cluster table, or vice versa, which is not permitted if the table is referenced in a view.
  Dependencies: There are dependencies on the base table that prevent changes from being made.
  
  Solution:
  
  Check View Dependencies: Identify all views that are using the base table. You can do this by using transaction SE11 (Data Dictionary) and checking the "Where-Used List" for the table.
  Remove Views: If possible, remove or modify the views that are dependent on the base table before attempting to change the table type.
  Change Table Type: Once the dependencies are resolved, you can proceed to change the table type of the base table.
  Recreate Views: After changing the table type, you may need to recreate the views that were dependent on the base table.
  Consult Documentation: Always refer to SAP documentation or consult with your SAP Basis or ABAP team for best practices and potential impacts of changing table types.
  
  Related Information:
  
  Transaction Codes: Use SE11 for Data Dictionary, SE14 for database utility, and SE80 for Object Navigator to manage and analyze objects.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error.
  Testing: After making changes, ensure thorough testing is conducted to verify that the changes do not adversely affect existing functionality.
  
  Best Practices:
  
  Always back up your data and configurations before making structural changes to database tables.
  Document any changes made to the data model for future reference and for other team members.
  Consider the impact of changes on existing reports, programs, and transactions that may rely on the affected tables and views.
  
  If you continue to face issues or if the situation is complex, it may be beneficial to engage with SAP support or a consultant who specializes in SAP data dictionary and database management.