How To Fix CNVMBT027 - No authorization for expert mode

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 027

• Message text: No authorization for expert mode

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT027 - No authorization for expert mode ?

  The SAP error message CNVMBT027: No authorization for expert mode typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the user does not have the necessary authorizations to access the expert mode features of the migration tool.
  Cause:
  The primary cause of this error is a lack of appropriate authorizations assigned to the user profile. The expert mode often requires higher-level permissions that are not granted to all users by default, as it allows for more advanced configurations and settings that could impact the migration process.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check User Authorizations:
  
  Verify the user’s role and authorization profile in the SAP system. You can do this by using transaction code SU01 to check the user’s details.
  
  
  
  Assign Required Roles:
  
  Ensure that the user has been assigned the necessary roles that include authorization for expert mode. Common roles that may include these permissions are:
  
  SAP_BC_CNV_MBT_ADMIN
  SAP_BC_CNV_MBT_USER
  
  
  You may need to work with your SAP security team to assign the appropriate roles.
  
  
  
  Use Transaction SU53:
  
  If you encounter the error, you can use transaction SU53 immediately after the error occurs to see which authorization checks failed. This can provide insight into what specific permissions are missing.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the migration tool you are using. This documentation often outlines the necessary authorizations for different modes of operation.
  
  
  
  Testing:
  
  After making changes to the user roles, log out and log back in to ensure that the new authorizations take effect. Then, try accessing the expert mode again.
  
  
  
  Contact SAP Support:
  
  If you continue to experience issues after verifying and updating authorizations, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SU01: User Maintenance
  SU53: Display Authorization Check
  PFCG: Role Maintenance
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or updates related to this error message.
  
  
  
  Security Best Practices:
  
  Ensure that users have the minimum necessary permissions to perform their tasks, following the principle of least privilege.
  
  
  
  By following these steps, you should be able to resolve the CNVMBT027 error and gain access to the expert mode in your SAP migration tool.