How To Fix /STTPEC/MC_MD091 - National Code &1, Type &2 already used for GTIN &3

/STTPEC/MC_MD091 - Overview

• Message type: E = Error

• Message class: /STTPEC/MC_MD -

• Message number: 091

• Message text: National Code &1, Type &2 already used for GTIN &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 /STTPEC/MC_MD091 - National Code &1, Type &2 already used for GTIN &3 ?

  The SAP error message /STTPEC/MC_MD091 indicates that there is a conflict with the National Code and Type associated with a Global Trade Item Number (GTIN). This error typically arises in the context of managing product data, particularly when dealing with GTINs and their associated attributes in the SAP system.
  
  Cause:
  The error message is triggered when:
  
  You are trying to assign a National Code and Type to a GTIN that has already been used for another product or item in the system.
  There may be a duplicate entry in the database for the combination of National Code, Type, and GTIN.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Entries:
  
  Use transaction codes like MM03 (Display Material) or MM02 (Change Material) to check if the GTIN you are trying to use is already associated with another National Code and Type.
  Look for existing records in the relevant tables (e.g., MARA, MAST, etc.) to identify any