CUSTOMER nominated rates / preferred vendor

As soon as we are updating a customer nominated rate we expect that below specific corridors are always automatically assigned to related vendor

However we found out cases where this is not happening, that’s why we would like to double check with you the actual process :

1. Is it correct to update customer nominated rates with the Price Owner Code? Can you pls confirm if it’s the correct one to be used?

2. Is it enough to create a customer nominated rate if we want to have the system pre assigning all the trips related to a specific corridor to a specific vendor? If not, can you pls advise correct steps in order to do that?