This app is used to show previews of Slack messages linked in Atlassian products. It is also used to allow admins to invite Slack users into Atlassian products.

Currently, it is not available by default in the official Slack App directory, which makes it not possible for customers to use the following Slack App Management Settings:

 

 

The only Solution/Workaround to perform the integration currently is:

• Disable Only allow apps from the Slack App Directory.

• Enable Require App Approval (this will keep the workspace secure from random apps).

• Pre-approve Atlassian Connector to allow users authorizing the app in Slack.

 

Slack documentation: Manage app approval for your workspace.