How To Fix AQ022 - Incorrect interface for assigned function module

AQ022 - Overview

• Message type: E = Error

• Message class: AQ - Message texts for SAP Query

• Message number: 022

• Message text: Incorrect interface for assigned function module

What causes this issue?

The interface of the function module that has been attached does not
conform to specifications.
With interface type 0 the interface must look as follows:
Import:
Import parameter: Reference field: Reference type:
PROGRAM SY-REPID
LIST_ID RSAQLDESC-LID
LISTTEXT C
LISTOFFSET I
No EXPORT or CHANGING parameters.
Tables:
Table parameter: Reference structure: Reference type:
LISTDESC RSAQLDESC
FPAIRS RSAQFPAIRS
DTAB

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

System Response

Error message

How to fix this error?

Only function modules that have an interface like the one shown above
can be used as additional function pool functions.

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 AQ022 - Incorrect interface for assigned function module ?

  The SAP error message AQ022, which states "Incorrect interface for assigned function module," typically occurs in the context of SAP's Application Queue (AQ) framework. This error indicates that there is a mismatch between the expected interface of a function module and the actual interface that has been defined or assigned to it.
  Causes:
  
  Mismatch in Function Module Signature: The function module that is assigned to the queue may have been changed (e.g., parameters added, removed, or modified) after it was assigned to the queue.
  Incorrect Assignment: The function module assigned to the queue may not be the correct one, or it may not be designed to handle the specific queue's data structure.
  Transport Issues: If the function module was transported from one system to another, the interface might not have been correctly updated or synchronized.
  Development Changes: Changes made in the development environment that have not been properly reflected in the production environment can lead