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

MW559 - Overview

• 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.

MW559 - Details

• 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