How to make Project Payment terms default to AR Customer Payment terms

Issue: The Payment terms on the Project invoices are incorrect and its due to because the payment terms in Projects (Billing -> Agreements) has incorrect values. But the payment terms in Accounts receivables Customer setup are correct.
 
 Ex: Project invoices are created with payment term = 30 NET(which is coming from PA Payment terms) even though it is set to Net 45 in the Receivable Customers form.
 
So how can i make Projects Payment terms defualt to AR Customer Payment terms? 

 
I have checked in Metalink and it seems the solution is as follows (ID 428638.1).
1.    Navigate using a Projects responsibility to the Agreements form.  Change the payment term at the agreement level to 'Net 45'.   Project invoices should now have the payment term of 'Net 45'.