How To Fix E0039 - Function module & does not exist

E0039 - Overview

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 039

• Message text: Function module & does not exist

What causes this issue?

Function module &v1&, which should assume reponsibility for further
IDoc processing, has been stored for port &v2&.
However, this function module does not exist and the IDoc could not be
processed further.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please change the port definition for port &v2& or create function
module &v1&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0039 - Function module & does not exist ?

  The SAP error message E0039, which states that a function module does not exist, typically indicates that the system is trying to call a function module that is either not defined in the system or is not accessible in the current context. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Function Module Not Created: The function module may not have been created or activated in the SAP system.
  Incorrect Name: There may be a typo or incorrect name in the code where the function module is being called.
  Transport Issues: If the function module was recently transported from another system, it may not have been imported correctly.
  Authorization Issues: The user may not have the necessary authorizations to access the function module.
  Namespace Issues: The function module might be in a different namespace that is not accessible in the current context.
  System Version: The function module may exist in a different version