How To Fix CNV_MBT855 - User &1 has no authorization to execute activity &2 .

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 855

• Message text: User &1 has no authorization to execute activity &2 .

What causes this issue?

The given activity that is going to be executed is assigned to an
activity group. In order to be able to execute activities that are
assigned to activity groups - the given user needs to be authorized to
execute activities for at least one of corresponding activity groups the
activity is assigned to .

System Response

Activity execution is not possible due to missing authority - execution
is cancelled .

How to fix this error?

Check User Authorization Profile .

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT855 - User &1 has no authorization to execute activity &2 . ?

  The SAP error message CNV_MBT855 indicates that a user does not have the necessary authorization to execute a specific activity within the SAP system. This error typically arises in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  The error occurs due to one of the following reasons:
  
  Missing Authorizations: The user does not have the required authorizations assigned to their user profile to perform the specified activity.
  Role Configuration: The roles assigned to the user may not include the necessary permissions for the transaction or activity being executed.
  Activity Restrictions: Certain activities may be restricted based on the user's role or profile settings.
  
  Solution:
  To resolve the CNV_MBT855 error, follow these steps:
  
  
  Check User Authorizations:
  
  Use transaction code SU53 immediately after the error occurs to check the authorization check failure. This will provide insights into which specific authorization is missing.
  Alternatively, you can use transaction code SUIM to analyze user roles and authorizations.
  
  
  
  Review User Roles:
  
  Go to transaction PFCG to review the roles assigned to the user. Ensure that the roles include the necessary authorizations for the activity in question.
  If the required authorizations are missing, you may need to modify the role or create a new role that includes the necessary permissions.
  
  
  
  Assign Missing Authorizations:
  
  If you identify missing authorizations, you can either assign them directly to the user or modify the relevant role to include those authorizations.
  Ensure that the changes are transported to the appropriate environments if you are working in a multi-system landscape.
  
  
  
  Consult with Security Team:
  
  If you do not have the necessary permissions to modify roles or authorizations, consult with your SAP security team or administrator to request the required access.
  
  
  
  Testing:
  
  After making the necessary changes, have the user log out and log back in to ensure that the new authorizations take effect. Then, attempt to execute the activity again.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SU53: Display Authorization Check
  SUIM: User Information System
  PFCG: Role Maintenance
  
  
  Authorization Objects: Depending on the activity, you may need to check specific authorization objects related to the transaction or function module being executed.
  Documentation: Refer to SAP documentation or the SAP Help Portal for detailed information on authorization management and role configuration.
  
  By following these steps, you should be able to identify and resolve the authorization issue causing the CNV_MBT855 error.