I'm a newbie in the Magento world and am trying to find out if there's an easy way to integrate Billpay payment solution with an existing one page checkout extension for Magento 2.
Does anyone have experience on this?
I've contacted both one page checkout providers as well as Billpay but haven't really gotten solid understanding yet regarding how easy it is to do this.
Minimum 2 years ago i installed a Billpay Extension. No problems with displaying in one page checkout.
Which Extension you are using?
and sorry for late answer, missed your answer. I've been trying this with Swissuplabs firecheckout: https://swissuplabs.com/one-step-checkout-extension-for-magento-2.html
If there are other one page checkout extensions that work well with Billpay, I'd be very interested in hearing about those.