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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MRNB012 - Currency in the PO history differs from the purchase order currency ?

  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 inconsistencies.
  
  Solution:
  
  Check PO Currency: Verify the currency defined in the purchase order. You can do this by navigating to the purchase order in SAP and checking the currency field.
  Review PO History: Check the history of the purchase order to see if there are any entries (like goods receipts or invoices) that have been recorded in a different currency.
  Correct Entries: If you find discrepancies, you may need to correct the entries in the PO history. This could involve reversing incorrect transactions and re-entering them with the correct currency.
  Use Consistent Currency: Ensure that all transactions related to the purchase order (goods receipts, invoices) are recorded in the same currency as the purchase order.
  Consult with Finance: If the issue persists, consult with your finance team to ensure that currency settings and exchange rates are correctly configured in the system.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like ME23N (Display Purchase Order) to view the purchase order details and ME22N (Change Purchase Order) to make necessary changes.
  Currency Configuration: Check the configuration settings in the SAP system related to currencies, such as the settings for the company code and vendor master data.
  Documentation: Refer to SAP documentation or help files for more detailed information on handling currency-related issues in purchase orders.
  
  By following these steps, you should be able to resolve the MRNB012 error and ensure that the currency used in the PO history matches the currency of the purchase order.