How to add external users to Google Chat in Spaces

Problem

Hangouts Chat has limitations when it comes to people that are added to groups, so external users need to be added to Spaces.

Environment

  • Google Chat
  • Spaces

Solution

  1. Turn on the setting Allow users to create & join spaces with people outside their organization, for space members and Chat apps so the proper authorization can invite external users to a space.

Cause

Hangouts Chat has limitations when it comes to people that are added to groups, external users need to be added to Spaces instead.