Sets the merchant-level default return URL for hosted checkout. This URL is used when
an invoice does not supply a payment_return_url. To clear the default, pass null
or an empty string. Only HTTPS URLs are allowed.
Documentation Index
Fetch the complete documentation index at: https://docs-alpha.pepay.io/llms.txt
Use this file to discover all available pages before exploring further.
JWT token for wallet authentication
2048^https://"https://merchant.example.com/checkout/complete"