How To Fix WA635 - Type linkage betw. & & and &: Not possible to change receiver funct.mod.&

WA635 - Overview

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 635

• Message text: Type linkage betw. & & and &: Not possible to change receiver funct.mod.&

What causes this issue?

The function module which is to be called so that the event can be
received by the receiver type (
<DS:GLOS.3526B12EAFAB52B9E10000009B38F974>receiver function module</>)
cannot be changed for the specified type linkage between object type
and event and the specified receiver type.

System Response

The action was terminated, the receiver function module is not changed.

How to fix this error?

Check whether the specified type linkage exists.
INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WA635 - Type linkage betw. & & and &: Not possible to change receiver funct.mod.& ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WA635 Type linkage betw. & & and &: Not possible to change receiver funct.mod.&
  
  Meaning / 
  Cause:
  This error occurs during the activation or modification of function modules that are linked via type linkage (also known as type group linkage or type pool linkage). The message indicates that there is a type linkage between certain function modules or interfaces, and due to this linkage, it is not possible to change the receiver function module.
  In SAP, function modules can be linked by types, meaning that the interface (parameters, types) of one function module depends on or is linked to another. If you try to change the receiver function module's interface or signature in a way that breaks this linkage, the system prevents it to maintain consistency and avoid runtime errors.
  
  Typical Scenarios:
  
  You are trying to change the interface of a function module that