We have a simple application where customers add Credit Cards and we generate invoices on our application and then on payment date we charge that invoice.

We are currently using PayPal v1 SDK API with v1 endpoint. As per PayPal they have deprecated v1 endpoints and we have to upgrade to v2 endpoint. We have done some small changes using (Checkout-Java-SDK) as per PayPal but when we try to charge actual order, it failed.

Later we found out that for v2 SDK point the customer need to approve each invoice before we can charge it, is this even possible without customer involvement?

We want to shift to v2 endpoint but due to this problem we cannot change v1 to v2.

Did miss something in the process? Can anyone suggest a solution for this problem.

Note: PayPal suggested that we should switch to Brain Tree but we don't want to use it.