Hi,

Direct card payments via REST API is only available if you have a UK PayPal account which has been enabled for payments pro.

The alternatives (non-REST) are either direct card payments via our classic API (direct payment), Braintree Direct or Payflow Pro.

Payflow Pro doesn't convert your account over to PayPal Manager. You use PayPal Manager in conjunction with your PayPal account. If you already have PayPal Here, it would continue to function and you can still log into your PayPal account.