How To Fix CNV_OM_PRESEL168 - No authorization to start simulation

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OM_PRESEL - Messages for LT Object Based Preselection

• Message number: 168

• Message text: No authorization to start simulation

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OM_PRESEL168 - No authorization to start simulation ?

  The SAP error message CNV_OM_PRESEL168 indicates that a user does not have the necessary authorization to start a simulation in the context of a specific operation or transaction. This error typically arises in scenarios involving data migration or conversion processes, particularly when using tools like the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The primary cause of this error is a lack of appropriate authorizations assigned to the user role. The user attempting to start the simulation does not have the required permissions to execute the operation.
  Solution:
  To resolve this issue, you can follow these steps:
  
  
  Check User Authorizations:
  
  Use transaction code SU53 immediately after the error occurs to check the authorization check that failed. This will provide insights into which specific authorization object is missing.
  
  
  
  Review Role Assignments:
  
  Go to transaction PFCG to review the roles assigned to the user. Ensure that the user has the necessary roles that include the required authorizations for the simulation process.
  
  
  
  Add Missing Authorizations:
  
  If you identify missing authorizations, you can either:
  
  Modify an existing role to include the necessary authorization objects.
  Create a new role with the required authorizations and assign it to the user.
  
  
  
  
  
  Consult with Security Team:
  
  If you do not have the necessary permissions to change roles or authorizations, consult with your SAP security team or administrator. They can help identify and assign the correct authorizations.
  
  
  
  Testing:
  
  After making changes to the user roles or authorizations, have the user log out and log back in, then attempt to start the simulation again to verify if the issue is resolved.
  
  
  
  Related Information:
  
  Authorization Objects: Common authorization objects related to data migration and simulation processes may include S_TCODE (Transaction Codes), S_USER_AUTH (User Authorizations), and specific objects related to the migration tools being used.
  Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional authorization requirements.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on required authorizations.
  
  By following these steps, you should be able to resolve the CNV_OM_PRESEL168 error and successfully start the simulation.