Multiple Bill Plan On a contract takes Precendence for Invoice generation

Summary:

Multiple Bill Plan On a contract takes Precendence for Invoice generation

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Hi team,

As per Business Process, there need to generate Invoices for Labor transactions and Non labor transactions(Supplier invoices) . Now i would like to Understand ,which bill plan will take the precende first to generate Invoice.

Ex :

1) Create a Contract ,with 2 lines

1st line has Bill plan - Cost reimbursable

2nd line ha Bill Plan - Rate Based.

2) Created couple of costs (1 ) Supplier costs ( from AP) (2) Labor hours (With in PPM).

3) At Bill plan level for line2 , There are task override rates for resources (named persons)