End of support notice: On October 7th, 2026, Amazon will discontinue support for Amazon IoT Greengrass Version 1. After October 7th, 2026, you will no longer be able to access the Amazon IoT Greengrass V1 resources. For more information, please visit [Migrate from Amazon IoT Greengrass Version 1](https://docs.amazonaws.cn/greengrass/v2/developerguide/migrate-from-v1.html).

# Create an Amazon IoT Greengrass group for the core
<a name="create-group"></a>

Amazon IoT Greengrass *groups* contain settings and other information about its components, such as client devices, Lambda functions, and connectors. A group defines the configuration for a core, including how its components can interact with each other.

In this section, you create a group for your core.

**Tip**  
For an example that uses the Amazon IoT Greengrass API to create and deploy a group, see the [gg\$1group\$1setup](https://github.com/awslabs/aws-greengrass-group-setup) repository on GitHub.

**To create a group for the core**

1. Navigate to the [Amazon IoT console](https://console.amazonaws.cn/iot).

1. Under **Manage**, expand **Greengrass devices**, and choose **Groups (V1)**.
**Note**  
If you don't see the **Greengrass devices** menu, change to an Amazon Web Services Region that supports Amazon IoT Greengrass V1. For the list of supported Regions, see [Amazon IoT Greengrass V1 endpoints and quotas](https://docs.amazonaws.cn/general/latest/gr/greengrass.html) in the *Amazon Web Services General Reference*. You must [create the Amazon IoT thing for your core](provision-core.md) in a Region where Amazon IoT Greengrass V1 is available.

1. On the **Greengrass groups** page, choose **Create group**.

1. On the **Create Greengrass group** page, do the following:

   1. For **Greengrass group name**, enter a name that describes the group, such as **MyGreengrassGroup**.

   1. For **Greengrass core**, choose the Amazon IoT thing that you created earlier, such as **MyGreengrassV1Core**.

      The console automatically selects the thing's device certificate for you.

   1. Choose **Create group**.