Using Facebook Live for Zoom video calls helps to know how Facebook handles permissions. When you set up a meeting, the social network gives users access to the forum via the "Allow live streaming of meetings" feature. But there are some caveats. For one thing, you must be an administrator of the Facebook group hosting the meeting. And it would help if you allowed everyone else to join -- even those outside your organization. Otherwise, they won't see the meeting invitation.
To stream meetings hosted on Facebook, you have to be an admin.
You can make this setting mandatory for all attendees, though. Doing so requires you to log into the Zoom web portal as the administrator. Once you do, go under the Meetings tab (in the Advanced Settings section). Click the "Allow live streaming" button next to "Facebook." Then select "Everyone," and finally, click "Save Changes." This makes it possible for anyone to attend your meeting, regardless of whether they belong to your organization.