Vantage - QuoteDtl Price List BPM

Hi All

Here's an easy one for a Friday afternoon.

How can I write a BPM or something to show an informational message when the following happens ...

Scenario 1

Opportunity/Quote is added
Customer is selected
Customer HAS a price list assigned
The user is allowed to carry on as normal


Scenario 2

Opportunity/Quote is added
Customer is selected
Customer DOES NOT have a price list assigned
Informational Message is displayed telling the user that they need to assign a price list to the customer.
The user IS NOT allowed to carry on as normal until a price list has been added


It sounds easy but I really dont know where to start.

Thanks.




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