How To Fix B1044 - Incorrect function module & called up

B1044 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 044

• Message text: Incorrect function module & called up

What causes this issue?

The function module &v1&, which was called for the application input,
was not able to process the IDoc. A possible cause is that the IDoc has
wrong message type or IDoc type.

How to fix this error?

Please check the message type assignment for the application function
module in the ALE customizing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1044 - Incorrect function module & called up ?

  The SAP error message B1044, which states "Incorrect function module & called up," typically indicates that there is an issue with the function module being called in your ABAP program or within a specific transaction. This error can arise due to various reasons, including:
  Causes:
  
  Incorrect Function Module Name: The function module name specified in the code may be misspelled or does not exist in the system.
  Function Module Not Active: The function module may not be activated or may have been deleted.
  Authorization Issues: The user may not have the necessary authorizations to execute the function module.
  Parameter Mismatch: The parameters being passed to the function module may not match the expected parameters in terms of type or number.
  Transport Issues: If the function module was recently transported from another system, it may not have been properly imported or activated.
  
  Solutions:
  
  Check Function Module Name: Verify that the function module name is correct and exists in the