Hi, I'm trying to setup Apple Pay.

I'm wanting to use them in the sandbox to have a development environment, and was wondering if that's supported?

I have been following the steps in this guide: https://developer.authorize.net/api/reference/features/in-app.html#Apple_Pay

When I try to submit the CSR file to Apple, I'm getting the error "CSR algorithm/size incorrect. Expected: RSA(2048)".

I'm trying to find out if something is misconfigured, or if I'm trying to do something that just isn't going to work.

Thanks