How To Fix MW559 - Missing input parameters in calling FM 'LOCATION_MERCHGROUPS_WITH_TEXT'

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 559

• Message text: Missing input parameters in calling FM 'LOCATION_MERCHGROUPS_WITH_TEXT'

What causes this issue?

You entered neither a plant number nor a customer number.

System Response

The system could not determine the material group for the plant.

How to fix this error?

Enter either a valid plant number or a customer number and carry out
the selection once again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW559 - Missing input parameters in calling FM 'LOCATION_MERCHGROUPS_WITH_TEXT' ?

  The SAP error message MW559, which states "Missing input parameters in calling FM 'LOCATION_MERCHGROUPS_WITH_TEXT'," typically occurs when there is an issue with the function module (FM) LOCATION_MERCHGROUPS_WITH_TEXT. This function module is used to retrieve merchandise group information for a specific location, and the error indicates that required input parameters are not being provided when the function is called.
  Causes:
  
  Missing Parameters: The most common cause of this error is that the function module is being called without providing all the necessary input parameters. This could be due to a programming error or a misconfiguration in the calling program.
  Incorrect Data: If the parameters being passed are incorrect or do not match the expected data types, it can lead to this error.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the function module, which can lead to unexpected behavior.
  System Configuration: There may be issues with the configuration of the merchandise groups or locations in the system.
  
  Solutions:
  
  Check Input Parameters: Review the code where the function module is called and ensure that all required input parameters are being passed correctly. The parameters typically include location ID and other relevant identifiers.
  Debugging: Use the SAP debugger to step through the code and identify where the parameters are being set and passed to the function module. This can help pinpoint the exact issue.
  Review Documentation: Check the SAP documentation for the function module LOCATION_MERCHGROUPS_WITH_TEXT to understand the required parameters and their expected formats.
  Authorization Check: Ensure that the user executing the function has the necessary authorizations to call the function module.
  Consult with Basis or ABAP Team: If the issue persists, it may be necessary to consult with your SAP Basis or ABAP development team to investigate further, especially if there are underlying configuration issues.
  
  Related Information:
  
  Function Module Documentation: You can access the documentation for LOCATION_MERCHGROUPS_WITH_TEXT in the SAP system by using transaction SE37 or SE80.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may be related to merchandise group management, such as MM01 (Create Material) or MM02 (Change Material).
  
  By following these steps, you should be able to identify and resolve the issue causing the MW559 error in your SAP system.