WIP

source/infrastructure/monitoring/slack/index.html.md.erb

@@ -54,3 +54,9 @@ Test manually using the `curl` command shown on the "Incoming webhooks" page
 - Ideally store the webhook as a [secret in keyvault](/infrastructure/security/managing-secrets/).
 - Retrieve the secret with [the az cli action](https://github.com/marketplace/actions/azure-cli-action)
 - Use a Github actions like [action-slack-notify](https://github.com/rtCamp/action-slack-notify) to post the message to the channel
+
+## Recover app
+If all the app collaborators have left, the webhooks can't be updated. It is required to recover the app to add a collaborator.
+- Use an existing Slack notification from this app. Find the app URL from the
+- Go to the #requests-slack channel
+- Choose a workflow and request to be added as a collaborator on the app