# GetContactGroups

Allows you to retrieve a list of all the contact groups, or a single contact group with all its contacts (ContactID and Name).

## Properties

#### Authentication

Authentication values used to connect to the Xero server.

#### Contact group id / name

You can retrieve an individual record by specifying the ContactGroupID or Name.

#### Where

Restrict the returned items using the specified criteria. See Where filter.

#### Order by

Return items in a specific order. See Order by filter.

#### Return options

Select how the data is to be returned. Possible values are:

* Only the first item.
* The first item or an empty item.
* All the items one by one.
* All of the items at once.

## Output

#### Return type of ContactGroups

A list of contact groups or a single contact group depending on the selected [Return option](https://github.com/linx-software/linx-docs/blob/v6-Main/reference/plugins/xero/content/contactgroups/getattachments.md#return-options).

## Links

[Xero Developer: Contact Groups (GET)](https://developer.xero.com/documentation/api/contactgroups#GET)


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.