Zapier Active Campaign Zap test not working

So far,
I’ve
– verified that https://yourpromotionpath.com/edd-api is accessible.
– created the API keys
– accessed the developer invite
– created the new zap
– provided zapier with the url, api key and token
– selected new order as the trigger
– connected the new account
– test was successful

Then we get to the point of “test the trigger by sending an order”
– I send the trigger (new order)
– Zapier says “if you haven’t yet, go create a brand new order”
– Zapier spins and spins and eventually says “we could not find the order”

It then has a line “check out common problems with Easy Digital Downloads” on Zapier.
I click the link but get a 404 error.

The only difference I see between what I have and your documentation is that I’m using https rather than http.