> ## Documentation Index
> Fetch the complete documentation index at: https://nango.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# How to register your own Infor OAuth app

> Register an OAuth app in Infor OS and connect it to Nango

This guide shows you how to register your own app in Infor OS to obtain your OAuth credentials (Client ID & Client Secret). These are required to let your users grant your app access to their Infor tenant through the ION API gateway.

<Steps>
  <Step id="open-authorized-apps" title="Open Authorized Apps">
    Log in to your Infor OS Portal as a user with the **ION API Administrator** role, open **API Gateway**, then select **Authorized Apps**.
  </Step>

  <Step id="add-application" title="Add a new authorized app">
    Click **Add** (the `+` icon). Enter a **Name** and **Description** for the app, then set **Type** to **Web**.
  </Step>

  <Step id="add-redirect-uri" title="Add the redirect URI">
    Set **Redirect URL** to `https://api.nango.dev/oauth/callback` for Nango Cloud, then save the app.
  </Step>

  <Step id="download-credentials" title="Download your credentials">
    Open the authorized app you just created and click **Download Credentials**. This downloads a `.ionapi` file containing your app's OAuth credentials as JSON.
  </Step>
</Steps>

## API gotchas

* The downloaded `.ionapi` file's `ci` and `cs` fields are your **Client ID** and **Client Secret**. Its `ti`, `pu`, and `iu` fields are the **Tenant**, **Authorization Server URL**, and **ION API Gateway URL** Nango needs — see the [connect guide](/docs/api-integrations/infor/connect) for where to enter them.
* Infor OS may require an administrator to also grant the app one or more **scopes** if your tenant has scope enforcement turned on. If your connection fails with a permissions error after authorizing, check with your Infor OS administrator.

For more details, see [Creating an authorized app](https://docs.infor.com/inforos/2024.x/en-us/useradminlib_cloud/idmceag_cloud_osm/chm1587721540048.html).

***