Please suggest where and how to set the Prorate basis Billing

Summary

Please suggest where and how to set prorate basis billing

Content

Dear Team,

Greeting!!

Business Requirement: -

There are two sales order lines

1. Hardware -Shipping Line

2. Subscription - Billing Line (Recurring Billing)

Shipping line gets fulfilled and AR invoice is generated, where in Subscription line is fulfilled only once the Hardware is installed at client’s location, the installation can be any day of the month, Subscription billing is Recurring billing for 12 months and the first month invoice should get  generate on prorate basis,

Please suggest where and how to set the prorate basis billing,

 

Thanks!

RAM