I want to develop the Sales Channel app with Order API wherein I would be using my own payment gateway.
1. I want to know what will be the fee structure of Shopify in this case?
2. If we use billing API then they charge 20% from the developer's cut but if we're exempted to use billing API then are there any charges from Shopify end?
https://shopify.dev/tutorials/build-a-sales-channel-with-the-orders-apiIn the above link they've mentioned that they charge a 2% platform fee of the total sale, if we're using our own payment gateway then also we need to pay this 2% platform fee?