Add Tips and Partial Payments to Invoices
When you create the invoice, you can set options that enable the customer to add a tip and make a partial payment. When you enable a partial payment, you can also set the minimum amount due value.
To include an entry field that enables the customer to add a tip as a flat amount or percent of the total due, set the allow_tip parameter to
Note: If the customer adds a tip, it appears on the invoice and also in the merchant's payment notification email.
Partial payment and minimum due payment
To enable the customer to make a partial payment, set the allow_partial_payment parameter to
When you enable a partial payment, you can also set the minimum_amount_due parameter to the minimum amount due value.
Continue to Set Up Webhooks for Invoices.