Message type: E = Error
Message class:  FRMLDLG - RMS-FRM: Dialog Messages for Formula 
Message number: 273
Message text: System cannot call function module &1
User exit &V1& was called which led to an error.
The system cancels processing and the user exit does not run.
Check the following possible causes of the error:
The function module is not active
The interface does not correspond to the calling position
The flow logic of the function module triggered a system exception
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.
The SAP error message FRMLDLG273, which states "System cannot call function module &1," typically indicates that there is an issue with the function module being called in the system. This error can arise due to several reasons, and here are some common causes, potential solutions, and related information: Causes: Function Module Not Found: The specified function module does not exist in the system or is not activated. Authorization Issues: The user does not have the necessary authorizations to execute the function module. Transport Issues: The function module may not have been transported correctly from the development environment to the production environment. System Configuration: There may be configuration issues or missing components in the SAP system that prevent the function module from being called. Syntax Errors: There could be syntax errors in the code that is trying to call the function module. Solutions: Check Function Module Existence: Use transaction code SE37 to check if the function module exists in the
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