Fix Notion AI Custom Action Cannot Be Triggered From Mobile App

You created a custom Notion AI action on desktop, but tapping it on the mobile app does nothing. This problem occurs because Notion mobile apps do not support custom AI actions in the same way as the desktop client. This article explains why custom AI actions fail on mobile and provides the only reliable workaround to run them from your phone.

Why Notion AI Custom Actions Do Not Work on Mobile

Notion AI custom actions are built on the desktop app’s scripting and integration layer. The mobile app, both iOS and Android, uses a stripped-down rendering engine that does not execute custom action triggers. When you tap a custom action button on a mobile page, the app does not send the necessary API call to the Notion AI server. Instead, the tap is ignored or produces no visible result.

Notion has not documented a timeline for bringing custom action support to mobile. The feature relies on the same backend that powers database automations and formulas, which also lack full mobile support. Until Notion releases a mobile update that includes custom action execution, the only path is to use a workaround that bridges the mobile and desktop environments.

Steps to Trigger a Custom AI Action From a Mobile Device

The following method uses a Quick Capture database to store content you want to process, then lets you run the custom action on your desktop. This approach works for both iOS and Android.

1. Create a Quick Capture database
   On your desktop, create a new database page named “Quick Capture.” Add a Title property and a Text property named “Content to Process.” This database will hold items you send from mobile.
2. Add a relation to your target database
   If your custom action operates on a specific database, add a Relation property in Quick Capture that links to that target database. This step is optional but makes it easier to move content later.
3. Share the Quick Capture page with your mobile account
   Ensure the Quick Capture database is in a workspace accessible from your mobile app. Open the Notion mobile app and navigate to the Quick Capture database.
4. Capture content on mobile
   On your phone, add a new entry to the Quick Capture database. Paste or type the text you want the AI action to process. Save the entry.
5. Open the same workspace on desktop
   On your desktop, open Notion and navigate to the Quick Capture database. Locate the entry you added from mobile.
6. Run the custom AI action on the captured content
   Highlight the content in the Content to Process property. Click the Notion AI button and select your custom action. The action runs on the desktop and processes the text.
7. Copy the result back to mobile (optional)
   If you need the result on mobile, copy the output from the desktop and paste it into the Quick Capture entry. The change syncs to your mobile app automatically.

Alternative Method: Use Mobile Browser to Access Desktop Interface

If you prefer not to use the Quick Capture workaround, you can run the custom action through a mobile web browser. This method works because the browser version of Notion displays the desktop interface, including the AI button.

1. Open Notion in your mobile browser
   On your phone, open Safari on iOS or Chrome on Android. Go to www.notion.so and log in.
2. Request the desktop site
   In Safari, tap the AA icon and select Request Desktop Website. In Chrome, tap the three-dot menu and check Desktop site. The page reloads with the full desktop layout.
3. Navigate to the page with the custom action
   Use the sidebar to find the page or database where your custom action is available.
4. Trigger the custom action
   Select the text you want to process. Tap the Notion AI icon in the toolbar. Choose your custom action from the dropdown. The action runs and displays the result on the page.
5. Resize the view for easier tapping
   Pinch to zoom in on the area around the AI button. This makes it easier to tap the correct option on a small screen.

If Notion AI Custom Action Still Does Not Trigger

Custom action button is grayed out on mobile

This occurs when the action requires a property type that the mobile app cannot read or write. For example, an action that modifies a formula property will be disabled because formula editing is not supported on mobile. The fix is to use the desktop site method described above.

Action runs on desktop but result does not sync to mobile

Notion syncs changes within a few seconds. If the result does not appear on mobile, close the app completely and reopen it. If the issue persists, check your internet connection on both devices. Forcing a sync by toggling Airplane Mode on and off on the mobile device can also help.

Mobile browser workaround fails to load desktop interface

Some mobile browsers cache the mobile version even after you request the desktop site. Clear the browser cache for Notion. In Safari, go to Settings > Safari > Clear History and Website Data. In Chrome, go to Settings > Privacy and Security > Clear Browsing Data. Then reload Notion and request the desktop site again.

Notion Desktop vs Mobile AI Action Capabilities

Feature	Desktop App	Mobile App
Create custom AI action	Yes	No
Trigger custom AI action	Yes	No
Trigger built-in AI actions	Yes	Yes
Edit action parameters	Yes	No
Use Quick Capture workaround	Not needed	Yes
Use mobile browser desktop site	Not needed	Yes

Notion AI custom actions remain a desktop-only feature as of 2025. The Quick Capture workaround and the mobile browser desktop site method are the only reliable ways to trigger these actions from a phone. For frequent use, set up a dedicated Quick Capture database with a link to your target database. This reduces the steps needed each time you capture content on mobile and process it on desktop.