Specifies the payment method to be used for the invoice.
| Option | Description | Additional Settings |
|---|---|---|
| UNKNOWN | The user will select the payment method at the checkout. | None |
| CRYPTO | The payment will be made using cryptocurrency. You can set the network and pay_currency to specify the type of cryptocurrency, or leave them unset to allow the user to choose. | network (optional), pay_currency (optional) |
| CARD | The payment will be made using a credit or debit card. The system will determine whether to use USD or EUR based on the channel and price_currency. | None |
| SKRILL | The payment will be made using Skrill. The system will determine whether to use USD or EUR based on the channel and price_currency. | None |