Exact Extracts from Salesforce Billing Implementation Guide:
* "Billing Type determines when a customer is invoiced and charged for a subscription or service. You can set Billing Type to Advance or Arrear."
* "Advance billing collects payment before the service period begins. The invoice is generated prior to the start date of the service period."
* "Arrear billing collects payment after the service has been delivered." Step-by-Step Reasoning:
* Requirement: The finance team wants invoices to be sent before the service begins (on the 15th of the prior month).
* Advance Billing Type: Ensures that invoicing occurs prior to the service period start, aligning perfectly with the "collect before service" requirement.
* Arrear Billing Type: Would bill after the service delivery, which does not meet the requirement.
* None: Would result in no defined billing schedule, leaving the invoicing behavior undefined.
Therefore, Advance Billing Type is correct.
References :
* Salesforce Billing Implementation Guide - Billing Treatments and Billing Type
* Salesforce Subscription Management Implementation Guide - Invoice Timing and Billing Configuration