How To Fix MRNB012 - Currency in the PO history differs from the purchase order currency

MRNB012 - Overview

• Message type: E = Error

• Message class: MRNB - Messages for Revaluation (Retro Active Pricing)

• Message number: 012

• Message text: Currency in the PO history differs from the purchase order currency

What causes this issue?

There are transactions (deliveries, invoices) in the past period, in
which the document currency is different to the purchase order
currency.
Automatic revaluation is not possible in this case.

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?

Reduce the past period so that it contains only transactions in which
the document currency matches.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

MRNB012 - Details

• The SAP error message MRNB012 indicates that there is a discrepancy between the currency used in the purchase order (PO) history and the currency specified in the purchase order itself. This can occur in various scenarios, such as when you are trying to process a goods receipt, invoice verification, or any other transaction that references the purchase order.
  
  Cause:
  
  Currency Mismatch: The most common cause is that the currency in the PO history (e.g., from a previous goods receipt or invoice) does not match the currency defined in the purchase order.
  Exchange Rate Changes: If the exchange rate has changed since the PO was created, it may lead to discrepancies in the amounts recorded in different currencies.
  Manual Changes: Manual changes to the PO or related documents that affect currency settings can also lead to this error.
  Different Currency Settings: If the vendor or the company code has different currency settings, it can lead to