How To Fix M-401 - & is not a characteristic in the communication structure!

M-401 - Overview

• Message type: E = Error

• Message class: M- -

• Message number: 401

• Message text: & is not a characteristic in the communication structure!

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.

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M-401 - Details

• The SAP error message "M-401 & is not a characteristic in the communication structure!" typically occurs in the context of SAP's Material Management (MM) module, particularly when dealing with the communication structure for reporting or data extraction. This error indicates that a specific characteristic (in this case, represented by the placeholder "&") is not recognized as part of the communication structure that is being referenced.
  
  Cause:
  
  Missing Characteristic: The characteristic you are trying to use in your report or data extraction is not defined in the communication structure.
  Incorrect Configuration: The communication structure may not be properly configured to include the characteristic you are trying to access.
  Data Source Issues: The data source you are using may not have been updated or may not include the necessary characteristics.
  Version Mismatch: There may be a version mismatch between the data source and the reporting tool or query you are using.
  
  
  Solution:
  
  Check Communication Structure: Verify the communication structure