How To Fix OL657 - Structure & could not be frozen due to an internal system error

SAP Error Message - Details

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 657

• Message text: Structure & could not be frozen due to an internal system error

What causes this issue?

You tried to freeze the interface of a method. A system occurred while
the interface structure was being frozen. There a number of possible
causes:
the freeze table is locked by another user
the freeze table could not be locked
a database error occurred while entries were being made in the freeze
table
As a result of the error, the interface could not be completely frozen.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL657 - Structure & could not be frozen due to an internal system error ?

  The SAP error message OL657, which states "Structure & could not be frozen due to an internal system error," typically occurs when there is an issue with the data structure in the SAP system, particularly in the context of the SAP Logistics or SAP Financial modules. This error can arise during various operations, such as when trying to modify or freeze a data structure that is used in the system.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the data that the system is trying to process, which can prevent the structure from being frozen.
  System Bugs: There could be bugs or issues in the SAP system version you are using that lead to this error.
  Authorization Issues: Lack of proper authorizations for the user trying to perform the operation can also lead to this error.
  Configuration Issues: Incorrect configuration settings in the system can lead to problems when trying to freeze structures.
  Database Locking: If the database is locked or if there are ongoing transactions that are preventing changes, this error may occur.
  
  Solutions:
  
  Check for Data Inconsistencies: Use transaction codes like SE11 (Data Dictionary) to check the structure and ensure that there are no inconsistencies in the data.
  Review System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the operation. You may need to consult with your SAP security team.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve the issue.
  Restart the Transaction: Sometimes, simply restarting the transaction or logging out and back into the system can resolve temporary issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with the error message, transaction details, and any relevant logs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SLG1 (Application Log), and SE37 (Function Module) for debugging.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Documentation: Review SAP documentation related to the specific module you are working with, as it may contain troubleshooting steps for common errors.
  
  By following these steps, you should be able to diagnose and potentially resolve the OL657 error in your SAP system.