How To Fix MM301 - You are not authorized to maintain material master data at client level

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 301

• Message text: You are not authorized to maintain material master data at client level

What causes this issue?

You have tried to create a material or to change key data for the
material (that is, data valid for the whole client, such as the
description or base unit of measure). However, you do not have the
authorization to do so.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you want to maintain key data for the material, please contact your
systems administrator.
Note for systems administrators
The authorization object concerned is M_MATE_MAN.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM301 - You are not authorized to maintain material master data at client level ?

  The SAP error message MM301, which states "You are not authorized to maintain material master data at client level," typically indicates that the user attempting to perform an action related to the material master does not have the necessary authorizations to do so. This error is common in environments where strict authorization controls are in place to protect sensitive data.
  
  Cause:
  
  Authorization Issues: The user lacks the required authorization objects to maintain material master data at the client level. This could be due to missing roles or permissions in their user profile.
  Client-Specific Settings: The user may be trying to access or modify data that is restricted at the client level, which requires specific authorizations.
  User Role Configuration: The roles assigned to the user may not include the necessary permissions for the specific transaction or action they are trying to perform.
  
  
  Solution:
  
  
  Check User Authorizations:
  
  Use transaction code SU53 immediately after the error occurs to check the