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

CNV_MBT855 - Overview

• 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.

CNV_MBT855 - Details

• 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