How To Fix RMSL137 - Interface was called without external key

RMSL137 - Overview

• Message type: E = Error

• Message class: RMSL - Labeling Application Messages

• 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.

RMSL137 - Details

• The SAP error message RMSL137, which states "Interface was called without external key," typically occurs in the context of the SAP Retail Management System (RMS) or similar modules where external keys are required for certain operations. This error indicates that a function or interface was invoked without providing the necessary external key, which is essential for identifying the specific record or transaction being processed.
  
  Cause:
  
  Missing External Key: The most common cause of this error is that the external key parameter, which is required for the function call, is either missing or not being passed correctly.
  Incorrect Configuration: There may be issues with the configuration of the interface or the way it is set up to handle external keys.
  Programming Errors: If custom code or enhancements are involved, there may be programming errors that lead to the external key not being populated or passed correctly.
  Data Integrity Issues: If the data being processed does not