Hey peeps!
I'm working with multiple 8-9 figure brands and I've set up custom events to get triggered from inside some of their flows.
Since ~19:30 GMT+2 February 5th, the webhooks are failing with 'invalid URL’ as a reason for failing.
But when I try and trigger the same exact API call with the same exact properties and inputs through Postman instead of a webhook, the event triggers properly (and it appears on the profile's Klaviyo events too).
I'm wondering if there's an issue in the translation from Klaviyo's webhook to actual API call.
P.S. I also updated the revision to the latest (2026-01-15) and adapted the webhook's body, but it still failed to trigger with the same reason, though, again, it worked in Postman
