How To Fix CSP_BDEF_CHECK027 - Etag binding of entity '&1' is not the same as the lock binding

SAP Error Message - Details

• Message type: E = Error

• Message class: CSP_BDEF_CHECK - Messages for CSP-implemented BDEF checks

• Message number: 027

• Message text: Etag binding of entity '&1' is not the same as the lock binding

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CSP_BDEF_CHECK027 - Etag binding of entity '&1' is not the same as the lock binding ?

  The SAP error message CSP_BDEF_CHECK027 indicates a problem with the binding of an entity's ETag in relation to its lock binding. This typically occurs in scenarios involving data consistency checks, especially when dealing with OData services or when multiple users are trying to access or modify the same data concurrently.
  Cause:
  The error arises when there is a mismatch between the ETag of the entity being accessed and the lock binding that is currently held. This can happen due to several reasons:
  
  Concurrent Modifications: Another user or process has modified the entity after it was initially read, leading to a different ETag.
  Stale Data: The data being accessed is outdated, and the ETag does not match the current state of the entity in the database.
  Locking Mechanism: The locking mechanism in place may not be functioning correctly, or the lock may have been released or changed by another transaction.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  Refresh the Data: Retrieve the latest version of the entity to get the current ETag. This can be done by re-fetching the entity from the database or service.
  Check for Concurrent Changes: Investigate if other users or processes are modifying the same entity. If so, coordinate with them to avoid conflicts.
  Implement Optimistic Locking: If not already in place, consider implementing optimistic locking strategies to handle concurrent modifications more gracefully.
  Error Handling: Implement error handling in your application to catch this specific error and prompt the user to refresh their data or retry the operation.
  Review Locking Configuration: Ensure that the locking configuration in your SAP system is set up correctly and that there are no issues with the lock management.
  
  Related Information:
  
  OData Services: If you are working with OData services, ensure that you are correctly managing ETags and understanding how they work with the HTTP protocol.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or patches related to this error.
  Transaction Logs: Review transaction logs to identify any patterns or specific actions that lead to this error, which can help in troubleshooting.
  
  By following these steps, you should be able to address the CSP_BDEF_CHECK027 error effectively. If the problem persists, consider reaching out to SAP support for further assistance.