1
Create an Incoming Webhook in Slack
- Open Slack API portal and create/select your app.
- Enable Incoming Webhooks.
- Add a webhook to your workspace and choose the target channel.
- Copy the generated webhook URL.
2
Save Slack webhook in Uptime Assure
- Go to Settings -> Notifications.
- Enable Slack integration.
- Paste the webhook URL and save notification settings.
3
Enable Slack channel per monitor
- Open the monitor you want alerts for.
- Set failure threshold (use 1 for testing).
- In alert channels, enable Slack.
- Save monitor changes.
4
Trigger and verify
- Force a failure (invalid URL, timeout, or wrong expected status).
- Wait for a check cycle or click Check Now.
- Confirm DOWN alert appears in Slack and in Alert Logs.
Troubleshooting
- No message on first failed check: incident threshold may not be reached yet.
- Slack added after incident already started: send a fresh failed check after saving channels.
- Webhook URL incorrect or revoked in Slack.
- Monitor alert channels do not include Slack.
- Alert worker not running (check backend logs).
Need help with setup?
Share a screenshot of your monitor alert configuration and we can help verify it.