---
sourceDocument: Yokohama Mobile Configuration and Navigation
sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/mobile

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Mobile Configuration and Navigation

ft:clusterId :

    - mobile

bundleId :

    - mobile

workflow :

    - evelopment, Data and Analytics


---

# Configure advanced app allowance with links to permitted apps

# Configure advanced app allowance with links to permitted apps {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Configure a scripted extension point with a list of mobile apps that can log in to
the ServiceNow instance. When a user attempts to log in with an
unauthorized app, the admin can add a link that redirects the user to an authorized
app.

## Before you begin

Role required: admin

## About this task

Only use the advanced app allowance configuration if you must configure a link that
redirects end users to a mobile app that is authorized to connect to the instance.
Otherwise, you should use the basic app allowance list configuration. For more
information, see [Configure a basic allowed mobile app list](https://www.servicenow.com/docs/K601GeQbfRKAmmvlHqYj4w "As an admin, configure a system property that contains a list of mobile apps that can log in to ServiceNow instances.").

If both basic and advanced app allowance modes are configured on the same instance,
then the system prioritizes the advanced app allowance configuration and always uses
it. The advanced app allowance configuration can cause performance issues if the
scripted extension point is not written to maximize system performance.

## Procedure

1. Navigate to AllScripted Extension Points.
2. Search for the global.CustomPreAuthProperties API Name and select it.  
   The CustomPreAuthProperties record appears. Do not change any field except the Example field.
3. In the Example field, configure the two following properties:  
   * allowed_mobile_apps  
     Add a comma-separated list of iOS Bundle IDs and Android Package Names. Use this list to add mobile apps that can connect to your instance. For example:

         ⋮
         customProperties['allowed_mobile_apps']='com.servicenow.fulfiller';
         ⋮

   * blocked_mobile_apps_redirect  
     Add a redirect URL for the button that appears when an end user attempts to log in with an unauthorized app. For example:

         ⋮
         customProperties['blocked_mobile_apps_redirect']='https://play.google.com/store/apps/details?
         id=com.servicenow.fulfiller&hl=en_US&gl+US';
         ⋮

   {#config-advanced-app-allow__ul_bnx_f5g_xrb}

   For an example of a completed script, see [Advanced app allowance example script](https://www.servicenow.com/docs/mhnvrz5wV5Ij3nHw99BB2A "Users with the admin role can use the example JSON script to configure a scripted extension point. Admins can use these scripted extension points to limit which mobile apps can log in to ServiceNow instances. These scripts can also be used to specify a redirect link to authorized mobile apps.").
4. To save the record, select Update.
5. Select Create implementation.

## Result

A new script include is created and registered as an extension point instance.

*[\>]: and then