Register, apply for connection, go through moderation and gain access to the API. After approval, you will be able to accept payments.1. We create a store as shown in the screenshot and copy the API key (then we paste it into BOT-T)
2. We insert the link to the WEBHOOK in big pay (see screenshot) -
https://api.bot-t.com/payment/bigpay 
We insert the API key into BOT-T and select the payment method from