Click the Interactive Components link in the menu Image Added
Click Enable Interactive Messages, enter Request URL and click Enable Interactive Messages The Request URL must be publicly accessible and secure. Image Added
Click the Bot users link in the menu. Image Added
Click Add a Bot User, enter Display name and Default username and click Add a Bot User Image Added
Click the OAuth & Permissions link in the menu. Image Added
Go to Redirect URLs section click Add a new Redirect URL, enter Redirect URL and click save changes. The Redirect URL must be publicly accessible and secure.
Go to scopes section and select “Administer the workspace” scope and click save changes. Image Added
Click on the Install App to Team button found on the Install App If new permission scopes or Slack app features are added after an app has been installed, app has to be reinstalled to workspace for changes to take effect. Image Added
Once the app installed, the access token will be generated in OAuth & Permissions page Image Added