How To Fix FKKINV306 - Incompatible changes made to reversal document

FKKINV306 - Overview

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 306

• Message text: Incompatible changes made to reversal document

What causes this issue?

In <DS:DE.FBEVE_KK>event</> 2725, impermissible changes were made to the
reversal billing document. This affects structure &V1&.

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?

You can use the event 2725 during reversal and adjustment of billing
documents to change the reversal billing document. For example, you can
change customer-specific fields. However, some changes are not allowed -
for example, adding new items.
Also see the documentation for event 2725 and change your
implementation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FKKINV306 - Details

• The SAP error message FKKINV306 indicates that there are incompatible changes made to a reversal document in the context of the Contract Accounts Receivable and Payable (FI-CA) module. This error typically arises when there are inconsistencies or issues with the reversal document that prevent it from being processed correctly.
  
  Cause:
  
  Inconsistent Data: The reversal document may have been altered after it was created, leading to inconsistencies with the original document.
  Document Status: The status of the original document may not allow for a reversal, or the reversal document may be in a status that is not compatible with the original.
  Changes in Key Fields: Changes to key fields (like amounts, dates, or account assignments) in the original document after the reversal was initiated can lead to this error.
  Custom Logic: If there are custom enhancements or logic implemented in the system, they may interfere with the standard reversal process.
  
  
  Solution:
  
  Check Document Changes: Review the original document