NowPayments

Log in at NowPayments.
Go to Store settings and add a new API Key.
Copy the key and paste it into Settings > Payments as NowPayments Api Key.
Generate an IPN secret key there and add it into Admin > Settings > Payments > NowPayments IPN Secret Key.
Add crypto wallets in your NowPayments account. We recommend adding many to lower conversion rates.
We recommend setting a payment covering percentage so that slightly underpaid transactions can still count as completed. Example: If set to 5%, a $100 invoice will be treated as paid in full if $95 is received.

If a payment is partially paid below your threshold, you will receive an email to manually process or refund.