How To Fix CLB2023 - The application key can be set only once

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB2 - SAIL: Common messages

• Message number: 023

• Message text: The application key can be set only once

What causes this issue?

Some methods need an application key for identification
purposes and for accessing Customizing. This key is set only
once during initialization. Additional attempts are treated as errors.

System Response

The method in progress is canceled.

How to fix this error?

A code change is required.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLB2023 - The application key can be set only once ?

  The SAP error message CLB2023 ("The application key can be set only once") typically occurs in the context of SAP's Collaborative Lifecycle Management (CLM) or related applications where an application key is being set for a specific object or transaction. This error indicates that the application key has already been assigned and cannot be modified or reassigned.
  Cause:
  
  Duplicate Assignment: The application key has already been set for the object or transaction, and any attempt to set it again leads to this error.
  Incorrect Logic in Custom Code: If there is custom code or a user exit that attempts to set the application key multiple times, it can trigger this error.
  Data Integrity Issues: There may be issues with the data integrity where the application key is not being handled correctly.
  
  Solution:
  
  Check Existing Assignment: Verify if the application key is already assigned to the object. You can do this by checking the relevant transaction or object in the SAP system.
  Review Custom Code: If there is custom development involved, review the code to ensure that the application key is only being set once. Look for any loops or conditions that might cause it to be set multiple times.
  Debugging: Use the SAP debugger to trace the execution flow and identify where the application key is being set. This can help pinpoint the exact location causing the error.
  Consult Documentation: Refer to SAP documentation or notes related to the specific application or module you are working with to see if there are any known issues or additional guidelines.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. They may have additional insights or patches available.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to the application you are working with, as they may provide additional insights into the data being processed.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the CLB2023 error effectively.