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 authorization failure. This will show which authorization objects are missing.
  Review the user's roles and profiles in transaction code SU01 (User Maintenance) or PFCG (Role Maintenance).
  
  
  
  Modify User Roles:
  
  If the user lacks the necessary authorizations, a security administrator or SAP Basis consultant should modify the user's roles to include the required authorization objects for material master maintenance.
  Common authorization objects related to material master data include:
  
  M_MATE_MAR (Material Master: General Data)
  M_MATE_MA (Material Master: Plant Data)
  M_MATE_MA (Material Master: Sales Data)
  
  
  Ensure that the roles are assigned correctly and that they cover the necessary transactions (e.g., MM01, MM02, MM03).
  
  
  
  Client-Specific Authorizations:
  
  If the material master data is client-specific, ensure that the user has the appropriate authorizations for the specific client they are working in.
  
  
  
  Testing:
  
  After making changes to the user roles, have the user log out and log back in to ensure that the new authorizations take effect.
  Test the transaction again to confirm that the issue is resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  SU53: Display Authorization Check
  SU01: User Maintenance
  PFCG: Role Maintenance
  
  
  
  Documentation: Refer to SAP documentation or the SAP Help Portal for detailed information on authorization objects and their usage in material master data maintenance.
  
  
  Security Best Practices: Regularly review user roles and authorizations to ensure compliance with security policies and to minimize the risk of unauthorized access to sensitive data.
  
  
  If the issue persists after checking and updating authorizations, it may be necessary to consult with your SAP Basis team or a security expert for further investigation.