Unable to Access Layers API Drawing Functions in Zoom App (drawImage / drawParticipant) Despite Correct Manifest

Aby
Sat, 15 Nov 2025 05:24:07 +0000
Zoom Apps

Zoom Apps Configuration
Vite, React, ZoomSDK, Node.js

Description
I am developing a Zoom App using Vite, React, and @zoom/appssdk, and I am attempting to use the Layers API (Immersive Apps) to draw content outside of the sidebar panel. Specifically, I need functions such as drawImage, drawParticipant, and runRenderingContext for displaying a small timer overlay on the meeting canvas for all participants.

No Permission for this API.
code: 80002
reason: unknown_api_name

No Permission for this API.
code: 80004
reason: app_not_support

It happens when clicking on thiszoomSdk.drawImage()
zoomSdk.drawParticipant()
zoomSdk.runRenderingContext(

Error?
No Permission for this API. [code:80002, reason:unknown_api_name]Status: Draw failed

Troubleshooting Routes
I have already attempted:

Confirmed Zoom desktop client v5.10.6+ is installed

Tested using the “Test Installation” with a hosted manifest URL

Enabled all relevant capabilities in Zoom Marketplace:

runRenderingContext

closeRenderingContext

drawImage

clearImage

drawParticipant

clearParticipant

broadcastApp

getRunningContext

onRenderedAppOpened

Verified the manifest.json includes the same capabilities

Reviewed and tested with the official Zoom Layers/Immersive sample apps

Verified I am not mixing Video SDK and Zoom App SDK

Verified that non-drawing APIs (such as showNotification) work correctly

The app loads successfully in the side panel, but all drawing-related APIs remain blocked.

How To Reproduce

1. Create a Zoom App using the latest @zoom/appssdk.

2. Add immersive/drawing capabilities to zoomSdk.config.

3. Call zoomSdk.runRenderingContext(...) or zoomSdk.drawImage(...).

4. Launch the app in a normal Zoom meeting via Test Installation.

5. The app loads correctly, but drawing calls fail with the above errors.

Question
Before submitting for Marketplace review, I need clarification:

1. Are Layers API / drawing APIs disabled for unapproved Zoom Apps?

2. Is Marketplace approval required before runRenderingContext, drawImage, or drawParticipant will function?

3. Is there any method to fully test these APIs prior to Marketplace approval?

I would like to confirm the expected behavior before preparing a full submission.

Thank you.

3 posts - 2 participants