How To Fix M!126 - &1: Instead of using MCBEST-&2 use MCBEST-&3

M!126 - Overview

• Message type: E = Error

• Message class: M! -

• Message number: 126

• Message text: &1: Instead of using MCBEST-&2 use MCBEST-&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 M!126 - &1: Instead of using MCBEST-&2 use MCBEST-&3 ?

  The SAP error message M!126 indicates a problem related to the use of a material master record in the context of a specific material type or configuration. The message suggests that instead of using a certain configuration (MCBEST-&2), you should use an alternative configuration (MCBEST-&3). 
  
  Cause:
  This error typically arises when there is an inconsistency or misconfiguration in the material master data. It can occur due to:
  
  Incorrect Material Type: The material type being used may not be compatible with the operation you are trying to perform.
  
  Configuration Issues: There may be settings in the material master that are not aligned with the expected configurations for the specific transaction or process.
  Data Migration Issues: If data has been migrated from another system, there may be discrepancies in the material types or configurations.
  
  
  Solution:
  To resolve the M!126 error, you can take the following steps:
  
  
  Check Material Type: Verify that the material type you are using is correct