How To Fix /ISDFPS/MM120 - Enter an existing purchase order

/ISDFPS/MM120 - Overview

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 120

• Message text: Enter an existing purchase order

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM120 - Enter an existing purchase order ?

  The SAP error message /ISDFPS/MM120 Enter an existing purchase order typically occurs in the context of the SAP system when a user is trying to process a transaction that requires a valid purchase order (PO) number, but the entered PO number does not exist in the system.
  
  Cause:
  
  Invalid Purchase Order Number: The most common cause is that the user has entered a purchase order number that does not exist in the system.
  Incorrect Document Type: The document type of the purchase order may not match the expected type for the transaction being performed.
  Authorization Issues: The user may not have the necessary authorizations to view or access the specified purchase order.
  Data Entry Errors: Typographical errors or incorrect formatting when entering the purchase order number can lead to this error.
  Purchase Order Deletion: The purchase order may have been deleted or archived, making it unavailable for the current transaction.
  
  
  Solution:
  
  Verify Purchase Order Number: Double-check the purchase