How To Fix CACSIB389 - Interface of function module &1 in system &2 is incompatible (field &3)

CACSIB389 - Overview

• Message type: E = Error

• Message class: CACSIB - Commissions: Interface and Pending Case Processing

• Message number: 389

• Message text: Interface of function module &1 in system &2 is incompatible (field &3)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CACSIB389 - Interface of function module &1 in system &2 is incompatible (field &3) ?

  The SAP error message CACSIB389 indicates that there is an incompatibility issue with the interface of a function module in the SAP system. This error typically arises when there is a mismatch between the expected data structure or field types in the function module and what is actually being passed to it.
  
  Cause:
  
  Field Mismatch: The field specified in the error message (&3) does not match the expected data type or structure defined in the function module (&1) in the specified system (&2).
  Version Differences: If there are different versions of the function module across systems (e.g., development, quality assurance, production), this can lead to incompatibility.
  Custom Modifications: If the function module has been modified or enhanced in one system but not in another, it can lead to discrepancies.
  Transport Issues: If the function module was transported from one system to another without proper adjustments, it may lead to incompatibility.
  
  
  Solution:
  
  Check Function Module Definition: Review the