How To Fix MSG_UH189 - Line &1: &2 is already assigned as contra item at line &3.

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_UH - Universal Hierarchy Message Class

• Message number: 189

• Message text: Line &1: &2 is already assigned as contra item at line &3.

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 MSG_UH189 - Line &1: &2 is already assigned as contra item at line &3. ?

  The SAP error message MSG_UH189 indicates that there is an issue with the assignment of contra items in a document. Specifically, the message states that a particular item (identified by line number &1) is already assigned as a contra item for another line (identified by line number &3). This typically occurs in the context of financial documents, such as invoices or credit memos, where contra items are used to offset or balance other items.
  Cause:
  The error is caused by attempting to assign an item that has already been designated as a contra item for another line in the same document. This can happen due to:
  
  Duplicate Assignment: The same item is being assigned to multiple lines as a contra item, which is not allowed.
  Incorrect Document Configuration: The document may not be set up correctly to handle contra items, leading to conflicts.
  User Error: A user may have inadvertently tried to assign the same item multiple times.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Document Lines: Check the document lines to identify where the item is already assigned as a contra item. Ensure that each item is only assigned once as a contra item.
  
  
  Remove Duplicate Assignments: If you find that the item is assigned to multiple lines, remove the duplicate assignment from the line that is not needed.
  
  
  Check Configuration: Ensure that the document type and configuration settings in SAP are correctly set up to handle contra items. This may involve consulting with your SAP configuration team.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on handling contra items in your version of SAP.
  
  
  Test Changes: After making adjustments, test the document again to ensure that the error no longer occurs.
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like FB60 (Enter Incoming Invoice), FB70 (Enter Outgoing Invoice), or others related to financial postings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Roles: Ensure that users have the appropriate roles and permissions to make changes to the document.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data involved.