Advance and Arrears Billing

When configuring your products for billing, consider when you want to invoice the customer for the product and the specific date range and time period for that invoice. The product’s Billing Type field lets you define when Salesforce Billing bills a product or service relative to when you provide it to the customer. Advance billing invoices a product or service before you provide it, while arrears billing invoices a product or service after you provide it. Salesforce Billing evaluates billing type when calculating an order product’s next billing date. (Salesforce Billing Managed Package)