How does Automatic Collection work?

Posting an invoice with automatic collection will tell Recurly to immediately attempt to pay the invoice with the billing information on the account (e.g. - credit card, bank account, PayPal, Amazon). With automatic collection, new subscriptions and use of the Purchases API endpoint will require a successful transaction in order for the invoice to post. Renewals and the Post Invoice API endpoint will post the invoice and process the automatic payment after the fact, sending the invoice into Past Due and the dunning cycle if a declined is returned.