Scalapay cannot handle the integration on your site if the platform has been built using custom code. However, we can certainly provide support and answer all your questions. Feel free to contact your Integration Manager to schedule a call with them. We will be happy to address any concerns you may have.
How to integrate Scalapay into a custom platform?
To integrate Scalapay into a custom platform, follow these 2 steps:
Widget installation
https://developers.scalapay.com/docs/how-to-install-the-widget
Checkout & API configuration
https://developers.scalapay.com/docs/set-your-configuration-at-checkout-with-api
How to test Scalapay?
See the integration testing details in our developer documentation, linked above, for the sandbox endpoint and test credentials.
If you have a plugin or an app, you can refer to our documentation: https://developers.scalapay.com/docs/what-is-scalapay