Note: For Local Recording on Catalina, you need to click the checkbox for at least the Documents Folder option under. Click the checkbox next to and/or Zoom Rooms.Click the permission that you need to change Camera, Microphone, Screen Recording, Files and Folders, or Accessibility.Enter your OS administrator username and password, then click Unlock.At the bottom-left corner of the Security & Privacy window, click the lock icon so that changes can be made.Click the Apple logo at the top left corner of your screen.You will need OS administrator access for the computer.

Note: If you upgrade your Zoom Rooms macOS to Mojave or Catalina, keep the keyboard and mouse connected to the computer until you open Zoom and authorize access to the camera and microphone. Prerequisites for granting permissions on macOS

Permissions for the Zoom desktop client.

If your security permissions allow it, you can click OK during the initial request to grant the permission. If you do not allow Zoom access during this initial prompt for the camera, microphone, screen recording, or remote control, access becomes disabled and you will need to go into your OS System Preferences to allow access. On macOS version 10.15 Catalina, screen recording will also need to be authorized to allow screen sharing. If you want to allow others to remotely control your desktop, you will also be prompted to allow the Zoom desktop client that access.

Due to increased security and permissions with macOS versions 10.14 Mojave and 10.15 Catalina, you will be prompted to authorize the Zoom desktop client and Zoom Rooms client to use the microphone and camera.

Macos webcam settings