Three relation types need to be added to the relation, in this case a supplier.
Web Portal Customer
Step 3 To make the supplier a preferred Supplier, another relation type can be added to the supplier:
Set 'create quotation request' to Yes on the scenario
It is now possible to create a quotation request when using a right mouse click on the transport order. When the User creates a new Quotation Request for any transport as noted in the Supplier Lane, the predefined Suppliers will be shown with extra information about he Supplier and its history:
Note: The is your Preferred Supplier and all others are the predefined Suppliers.
If it isn't clear yet or there is more help required, please contact our Support team through the Support Portal!