SAP Message 01161 - No authorization for migration

Diagnosis
You are not authorized to execute the migration.

System Response
The migration terminates.

Procedure
Contact your system administrator for the missing authorization.

Procedure for System Administration
The user needs the authorization object S_USER_SYS with the value "*"for the "Subsystem" field (the full authorization for all systems isrequired) and the value "90" (migrate) for the "Activity" field.