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

# CreateGroup


Creates a group. You can provide the initial version of the group or use `CreateGroupVersion` at a later time. Tip: You can use the `gg_group_setup` package (https://github.com/awslabs/aws-greengrass-group-setup) as a library or command-line application to create and deploy Greengrass groups. 

URI: `POST /greengrass/groups`

Produces: application/json

## CLI:


```
aws greengrass create-group \
  --name <value> \
  [--initial-version <value>] \
  [--tags <value>] \
  [--amzn-client-token <value>]  \
  [--cli-input-json <value>] \
  [--generate-cli-skeleton]
```

cli-input-json format:

```
{
"Name": "string",
"InitialVersion": {
  "CoreDefinitionVersionArn": "string",
  "DeviceDefinitionVersionArn": "string",
  "FunctionDefinitionVersionArn": "string",
  "SubscriptionDefinitionVersionArn": "string",
  "LoggerDefinitionVersionArn": "string",
  "ResourceDefinitionVersionArn": "string",
  "ConnectorDefinitionVersionArn": "string"
},
"tags": {
  "additionalProperty0": "string",
  "additionalProperty1": "string",
  "additionalProperty2": "string"
},
"AmznClientToken": "string"
}
```

## Parameters:


[**CreateGroupRequestBody**](parameters-creategrouprequestbody.md)  
  
where used: body; required: true  

```
{
"Name": "string",
"InitialVersion": {
  "CoreDefinitionVersionArn": "string",
  "DeviceDefinitionVersionArn": "string",
  "FunctionDefinitionVersionArn": "string",
  "SubscriptionDefinitionVersionArn": "string",
  "LoggerDefinitionVersionArn": "string",
  "ResourceDefinitionVersionArn": "string",
  "ConnectorDefinitionVersionArn": "string"
},
"tags": {
  "additionalProperty0": "string",
  "additionalProperty1": "string",
  "additionalProperty2": "string"
}
}
```
schema:    
Name  
The name of the group.  
type: string  
InitialVersion  
Information about a group version.  
type: object  
CoreDefinitionVersionArn  
The ARN of the core definition version for this group.  
type: string  
DeviceDefinitionVersionArn  
The ARN of the client device definition version for this group.  
type: string  
FunctionDefinitionVersionArn  
The ARN of the function definition version for this group.  
type: string  
SubscriptionDefinitionVersionArn  
The ARN of the subscription definition version for this group.  
type: string  
LoggerDefinitionVersionArn  
The ARN of the logger definition version for this group.  
type: string  
ResourceDefinitionVersionArn  
The ARN of the resource definition version for this group.  
type: string  
ConnectorDefinitionVersionArn  
The ARN of the connector definition version for this group.  
type: string  
tags  
The resource tags.  
type: object  
additionalProperties: The key-value pair for the resource tag. Type: string

[**X-Amzn-Client-Token**](parameters-clienttoken.md)  
A client token used to correlate requests and responses.  
where used: header; required: false  
type: string

## Responses:


**200** (CreateGroupResponse)  
Success. The group was created.  
 [ DefinitionInformation](definitions-definitioninformation.md)   

```
{
"Name": "string",
"Id": "string",
"Arn": "string",
"LastUpdatedTimestamp": "string",
"CreationTimestamp": "string",
"LatestVersion": "string",
"LatestVersionArn": "string"
}
```  
DefinitionInformation  
Information about a definition.  
type: object  
Name  
The name of the definition.  
type: string  
Id  
The ID of the definition.  
type: string  
Arn  
The ARN of the definition.  
type: string  
LastUpdatedTimestamp  
The time, in milliseconds since the epoch, when the definition was last updated.  
type: string  
CreationTimestamp  
The time, in milliseconds since the epoch, when the definition was created.  
type: string  
LatestVersion  
The ID of the latest version associated with the definition.  
type: string  
LatestVersionArn  
The ARN of the latest version associated with the definition.  
type: string

**400**  
Invalid request.  
 [ GeneralError](definitions-generalerror.md)   

```
{
"Message": "string",
"ErrorDetails": [
  {
    "DetailedErrorCode": "string",
    "DetailedErrorMessage": "string"
  }
]
}
```  
GeneralError  
General error information.  
type: object  
required: ["Message"]  
Message  
A message that contains information about the error.  
type: string  
ErrorDetails  
A list of error details.  
type: array  
items: [ErrorDetail](definitions-errordetail.md)  
ErrorDetail  
Details about the error.  
type: object  
DetailedErrorCode  
A detailed error code.  
type: string  
DetailedErrorMessage  
A detailed error message.  
type: string