---
schema_version: "1"
id: 60e8a8fd2de0b4f75f5e56ad1e3b83102a12d7a2d81ba8e85f097c552a75d635
title: POST /contacts/v1/attributeGroups/population
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/createPopulationAttributeGroup.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/references/mc_rest_contacts/createPopulationAttributeGroup.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 217ce7756fc147bce3d513f1c656c1af8cdc1a4353122e750eb3fb000d13319b
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# POST /contacts/v1/attributeGroups/population

## Overview

 Creates a population within Contact Builder.

## JSON Parameters

| Name | Type |  | Description  |
| --- | --- | --- | --- | --- |
| name |string |Required |Name of the new population |


## Responses

| Status | Name | Type | Description |
| --- | --- | ---- | ---- |
| **200** |   |   | **Population AttributeGroup successfully created** |
|   | item | object | The newly created population item |
|   | operationstatus | string | Current operation status |
|   | requestservicemessageid | guid | Service message ID for the request |
|   | servicemessageid | guid | Service message ID for the response |
|    |   |     |    |
| **default** |   |   | **Unexpected error** |
|   | message | string | Error message text |
|   | errorCode | int | ErrorCode ID for the error |