How To Fix WXCM100 - No function module stored for attribute &1, context structure &2

WXCM100 - Overview

• Message type: E = Error

• Message class: WXCM - Messages for Package CM_MAP

• Message number: 100

• Message text: No function module stored for attribute &1, context structure &2

Self-Explanatory Message

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WXCM100 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WXCM100 No function module stored for attribute &1, context structure &2
  
  
  Cause:
  This error occurs in the Web Dynpro ABAP environment when the system tries to execute a function module associated with a context attribute, but no function module has been assigned or stored for that attribute in the component controller or context node.
  In Web Dynpro, attributes in the context can have associated function modules for certain operations (like value help, input validation, or other custom logic). If the framework expects a function module to be linked to an attribute but finds none, it raises this error.
  Typical scenarios causing this error:
  
  A context attribute is configured to use a function module (e.g., for value help or input help), but the function module name is missing or not maintained.
  The function module was deleted or renamed but the context attribute still references the old