Resolving 'url_verification' Failures in Slack Event Subscriptions
Learn how to diagnose and fix 'url_verification' failures when setting up Slack Event Subscriptions, including handling the challenge token and middleware blocks.
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Learn how to diagnose and fix 'url_verification' failures when setting up Slack Event Subscriptions, including handling the challenge token and middleware blocks.
A Slack app verifies its event subscription endpoint during local development using an ngrok URL. After deployment, the production endpoint differs, and the app is reinstalled in the target workspace. The goal is to determine whether Slack automatically initiates a new URL verification handshake when an app is reinstalled with a changed event subscription en