We have set up HealthChecks in Cloudflare that use Slack's webhooks for informing our teams in a Slack workspaces about changes of some server's health conditions.
Initially, this went fine, but then, time after time, the different Cloudflare notifications started to create double output in our respective workspaces.
Cloudflare's dev were able to proof that they only call the webhook api once per message, but nevertheless, they appear immediately twice, as if the same message would be duplicated and then sent to the channel.
And so the fact that deleting the notification on the Cloudflare- side and creating a new one did not change the phenomenon came to no surprise.
Deleting the webhook for the Slack workspace and creating a new one and assinging it to the notifications in Cloudflare helps, though. But only for a limited undetermined time.
Does anyone have experience with this phenomenon and can tell me why this is and/or how I can prevent the Cloudflare notifications from appearing twice each in our Slack workspaces?