Last month we released a new endpoint to send invoices via API to mimic the behavior of the "Send Invoice" button within the UI. This endpoint enables you to programmatically deliver ad-hoc invoices as well as the re-send of auto-generated invoices, thus giving you control of when to send out an invoice. 

As we continue adding new API endpoints, we are excited to announce new filter options on exposed event types on an invoice. You can now filter for multiple event types on an invoice (e.g. issue_invoice, apply_credit_note, refund_invoice) using a comma separated list. Previously, you were able to filter by only 1 invoice event. 

For more information, see our documentation here>