How To Fix DB_SCHEMA_MAP021 - Cannot change any of the selected entries.

SAP Error Message - Details

• Message type: E = Error

• Message class: DB_SCHEMA_MAP -

• Message number: 021

• Message text: Cannot change any of the selected entries.

What causes this issue?

None of the selected entries can be changed because all entries with
changeable mapping are already locked by another session or user.
Transaction DB_SCHEMA_MAP can be used to display, but not change,
entries with automatic schema mapping.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB_SCHEMA_MAP021 - Cannot change any of the selected entries. ?

  The SAP error message DB_SCHEMA_MAP021 with the description "Cannot change any of the selected entries" typically occurs in the context of database schema mapping or when trying to modify entries in a database table that are not allowed to be changed. This can happen for various reasons, including:
  Causes:
  
  Authorization Issues: The user may not have the necessary permissions to modify the selected entries in the database.
  Data Locking: The entries may be locked by another user or process, preventing changes.
  System Configuration: The system may be configured to prevent changes to certain entries based on business rules or settings.
  Technical Restrictions: The entries may be part of a system-defined structure that does not allow modifications (e.g., certain configuration tables).
  Transport Layer Issues: If the changes are being made in a transport layer that does not allow modifications, this error may occur.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to modify the entries. This can be done by reviewing the user's roles and permissions in the SAP system.
  Release Locks: If the entries are locked, identify the user or process that has locked them and either wait for the lock to be released or contact the user to release it.
  Review Configuration Settings: Check if there are any configuration settings that prevent changes to the entries. This may involve consulting with a system administrator or reviewing the relevant documentation.
  Use Correct Transaction: Ensure that you are using the correct transaction code or method to make the changes. Some entries may require specific transactions to modify.
  Consult Documentation: Review SAP documentation or notes related to the specific table or entries you are trying to modify to understand any restrictions or requirements.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), or SE37 (Function Builder) when encountering this error.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the DB_SCHEMA_MAP021 error in your SAP system.