We are using Checkout.com as the payment gateway in coordination with Invoice Ninja for our payment links. Recently there has been an upgrade of the Checkout platform after which we cannot create payment links.
We followed the methods below, but still not working.
We need your support to integrate with the newly upgraded checkout platform to enable the payment process through the Ninja platform.
I believe we are resolving this over email currently. For anyone else landing on this particular issue.
Checkout has an additional requirement of selecting a processing channel when creating API Credentials. It is essential that you explicitly select a particular channel when creating your api keys. (ie. do not select “USE ANY” processing chanel.