I have successfully configured Crashlytics Webhook with Slack. I have also tested it with the Test Message given in Crashlytics console. Test message working fine.
But, when I have an actual crash in Crashlytics, it is not getting triggered into the Slack. I don't know where is the issue. What am I doing wrong here?
Mike from Fabric here. I responded over email, but will make the answer public as well.
For this integration, you've set the impact level to 5 which means that only issues that are the most impactful will be mentioned in Slack. If you want to be notified of every new issue, set the impact level to 1.
来源：https://stackoverflow.com/questions/52272225/crashlytics-webhook-for-slack-is-not-working