I have encountered this a few times, an order notify webhook will hit my
server, and I call the resource_url. And it returns empty
orders...anyone know why?
I'm also experiencing this issue, specifically with delayed Amazon
orders. If I purchase a label for a couple days out, when that day
comes, it's only Amazon orders that get the failure to notify error.
Amazon actually makes this difficult. For whatever reason they do not
make custom/personalized item information available via their API, which
means integrations like ShipStation cannot access it, not without
implementing some workarounds.