Slack

To configure Slack, enter the Slack Workspace ID you want to allow access to.

All other Slack Enterprise IDs will be blocked.

Slack Configuration

If a user tries to access the account with another unverified Slack Workspace ID, then a Slack block page is shown.

If you need get further information from Slack, you can get it here: https://slack.com/intl/en-ie/help/articles/360024821873-Approve-Slack-workspaces-for-your-network.