How To Fix MR018 - You do not have the authorization to read class &

SAP Error Message - Details

• Message type: E = Error

• Message class: MR - Stock overview for generic materials

• Message number: 018

• Message text: You do not have the authorization to read class &

What causes this issue?

You wanted to read the characteristics for a generic material or for a
material group. However, you do not have the read authorization for the
corresponding class.

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?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MR018 - You do not have the authorization to read class & ?

  The SAP error message MR018, which states "You do not have the authorization to read class &," typically occurs when a user attempts to access a classification or characteristic in the SAP system for which they do not have the necessary authorization. This can happen in various modules, particularly in Materials Management (MM) or when dealing with classification data.
  Cause:
  
  Authorization Issues: The user lacks the necessary authorization object to read the classification data. This could be due to missing roles or authorizations assigned to the user profile.
  Class Not Defined: The class that the user is trying to access may not be defined correctly or may not exist in the system.
  User Profile Changes: Changes in user roles or profiles that remove access to certain classes or characteristics.
  
  Solution:
  
  
  Check User Authorizations:
  
  Use transaction code SU53 immediately after encountering the error to check which authorization object is missing.
  Review the user’s roles and authorizations in transaction SU01 or PFCG to ensure that the necessary authorizations for reading the class are included.
  
  
  
  Modify Roles:
  
  If the necessary authorizations are missing, you may need to modify the user’s roles or create a new role that includes the required authorization objects (e.g., C_TCL0_01 for class management).
  Ensure that the role includes access to the specific class or characteristic that the user is trying to access.
  
  
  
  Consult with Security Team:
  
  If you do not have the necessary permissions to change roles or authorizations, contact your SAP security team or administrator to request the required access.
  
  
  
  Check Class Definition:
  
  Verify that the class exists and is correctly defined in the system. You can check this using transaction CL02 (Change Class) or CL03 (Display Class).
  
  
  
  Testing:
  
  After making changes to roles or authorizations, have the user log out and log back in to ensure that the changes take effect.
  
  
  
  Related Information:
  
  Authorization Objects: Familiarize yourself with the relevant authorization objects related to classification in SAP. Common objects include:
  
  C_TCL0_01: Class Management
  C_TCL0_02: Characteristics Management
  
  
  Transaction Codes:
  
  SU53: Display Authorization Check
  SU01: User Maintenance
  PFCG: Role Maintenance
  CL02/CL03: Class Management
  
  
  Documentation: Refer to SAP documentation or help resources for detailed information on authorization management and troubleshooting authorization issues.
  
  By following these steps, you should be able to resolve the MR018 error and gain the necessary access to the classification data in SAP.