Diagnosis
You are not authorized to display or make changes in the customermaster.

System Response
First, the system checks whether or not a change authorization for thecustomer master exists. If not, the display authorization is then alsochecked for this application, since users with no change authorizationmay still be allowed to access the customer master on a read-onlybasis.
The system checks authorization object F_KNA1_APP.

Procedure
Contact your system administrator regarding authorization procedures.