How To Fix M8_2122 - Differential invoicing transaction has changed; note changes

M8_2122 - Overview

• Message type: E = Error

• Message class: M8_2 - Logistics Invoice Verification

• Message number: 122

• Message text: Differential invoicing transaction has changed; note changes

What causes this issue?

If when entering a differential invoice or a final invoice you change
the type of differential posting to one of the following, the system
performs a complete reassignment:
As invoice
As credit memo
Manual entries are discarded.

System Response

How to fix this error?

Check the invoice items.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

M8_2122 - Details

• The SAP error message M8_2122 indicates that there has been a change in the differential invoicing transaction, and it prompts the user to note these changes. This error typically arises in the context of invoice verification and can be related to various factors, including changes in the underlying data or conditions that affect the invoicing process.
  
  Cause:
  
  Data Changes: The most common cause of this error is that the data related to the invoice has been modified after the initial creation of the differential invoice. This could include changes to the purchase order, goods receipt, or other related documents.
  Price Changes: If there are changes in pricing conditions or discounts that affect the invoice, this can trigger the error.
  Document Status: The status of the documents involved (e.g., purchase orders, goods receipts) may have changed, leading to inconsistencies.
  
  Configuration Issues: There may be configuration settings in the SAP system that are not aligned with the