To create a new Matter integration, you must first have a
project as described in [Create a developer project](https://developers.home.google.com/matter/project/create.md.txt).
Once your project is set up, go to the Google Home Developer Console:

[Go to the Developer Console](https://console.home.google.com)

1. From the list of projects, click **Open** next to the project you want to
   work with.

2. Click **Add Matter integration**.

   If this is the first time you're creating a Matter
   integration, you are taken to the **Matter resources** page, where you can
   view Matter development documentation and read about
   some tools.

   When you're ready to continue, click **Next: Develop** , which displays the
   **Matter checklist** page. Click **Next: Setup**.

   If this is *not* the first time you're creating a Matter
   integration, you'll find yourself at the **Setup** page.
3. On the **Setup** page, enter your **Product name**.

4. Click **Select device type** and select the device type from the drop-down
   menu.

5. In the **Configuration** page, enter a Vendor ID (VID).

   ![Matter integration configuration
   dialog](https://developers.home.google.com/static/matter/integration/images/GHDC_integration-matter-vendor-id.png)


   By default, you can use one of the VIDs allocated by the Alliance for
   testing purposes. Select one of the following:
   `0xFFF1`, `0xFFF2`, `0xFFF3`, `0xFFF4`.

   To use a Production VID so that your integration can be certified and launched, you must first
   have it verified by Google to ensure that it has been issued to you by the Alliance.

   This VID should be implemented in your device's firmware.

   <br />

6. To submit for verification, select **Connectivity Standards Alliance (Alliance)-issued
   vendor ID (to certify)** . To learn more about the verification process, see
   [Verify a Vendor ID](https://developers.home.google.com/matter/integration/vid-verification.md.txt).

7. Add a Product ID (PID).

   Information about the device is read from the
   Matter Basic Information Cluster. The Product ID encoded in your
   device's firmware must match the Product ID of the Matter integration
   in the Developer Console.

   <br />

8. Click **Save \& continue** , which saves the Matter
   integration configuration.

VID and PID can only be used once for one integration. If you want to use the
same VID or PID in your integration, you need to either:

- Edit the integration using the VID or PID to a different VID or PID.
- Delete the integration using the VID or PID.

### Troubleshooting

#### Verify the credentials for your device

When you use your own *Alliance-assigned VID* , ensure that you
have the *correct credentials on the device*:

- Certification Declaration (CD).
- Device Attestation Certificate (DAC) and its certificate chain.

For more information, see [Create Matter device test
certificates](https://developers.home.google.com/matter/build/certificates).