I am in the process of setting up an Express Checkout button which allows both one-time and recurring payments in one button. The single payments are working fine in the sandbox but I am running into problems when setting up billing agreement payments.
I am able to create a billing agreement which returns the JSON for the agreement, but then redirecting the flow to the login/payment screen doesn't work and shows an error message: "Things don't appear to be working at the moment. Please try again later."
Before the error, the URL is: "https://www.sandbox.paypal.com/checkoutnow?version=4&locale.x=en_GB&fundingSource=paypal&sessionID=5..."
So something is wrong when processing the request, but there are no errors returned in the console log.
Can anyone give some advice how to fix this please? Much appreciated
