Kontorion Billing API
Send a test message to a Slack webhook
POST
https://api.kontorion.eu/v1
/notifications/slack/test
Posts a fixed test message to the supplied webhook URL so an org admin can verify the integration before saving it. This endpoint does NOT persist the URL - store it via the org-settings endpoint after a successful round-trip.
Send a test message to a Slack webhook › Responses
Webhook delivered successfully