How To Fix RMSL_WUI137 - Interface was called without external key

SAP Error Message - Details

• Message type: E = Error

• Message class: RMSL_WUI - Labeling Web UI: RMSL Class Messages Converted for Web UI

• Message number: 137

• Message text: Interface was called without external key

What causes this issue?

A BAdI interface was not implemented correctly.

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?

Check the data supply to the interfaces of the BAdI implementations.

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 RMSL_WUI137 - Interface was called without external key ?

  The SAP error message RMSL_WUI137, which states "Interface was called without external key," typically occurs in the context of the SAP Retail Management System (RMS) or similar applications where an external key is required for processing certain operations. This error indicates that the system expected an external key to be provided, but it was not included in the call to the interface.
  Cause:
  
  Missing External Key: The most common cause of this error is that the external key, which is necessary for identifying the specific record or transaction, was not passed to the interface when it was called.
  Incorrect Configuration: There may be a configuration issue in the interface settings that does not properly handle the external key.
  Programming Error: If custom code or enhancements are involved, there may be a bug or oversight in the code that fails to supply the external key.
  Data Integrity Issues: If the data being processed is incomplete or corrupted, it may lead to the absence of the required external key.
  
  Solution:
  
  Check the Interface Call: Review the code or configuration that calls the interface to ensure that the external key is being passed correctly. Make sure that the key is not null or empty.
  Validate Data: Ensure that the data being processed contains valid external keys. If the data is coming from an external source, verify that the source is providing the necessary keys.
  Review Configuration: Check the configuration settings for the interface in the SAP system to ensure that it is set up to require and handle external keys correctly.
  Debugging: If you have access to debugging tools, you can trace the execution of the interface call to see where the external key is being lost or not set.
  Consult Documentation: Refer to SAP documentation or notes related to the specific interface you are working with for any additional requirements or troubleshooting steps.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance, especially if this is a production issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches or updates.
  Transaction Codes: Familiarize yourself with transaction codes related to the RMS or the specific module you are working with, as they may provide additional insights or tools for troubleshooting.
  Community 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 identify the cause of the RMSL_WUI137 error and implement a solution to resolve it.