# Introduction
`ABGroupUpdate` is one of the SOAP actions the [Address Book Service](../abservice.md) provides.

Changes information about a contact group.

# Client/Request
The template used in this action is described on the [Address Book Service](../abservice.md) main page.

## ABGroupUpdate
This element has only one attribute:
* `xmlns:` Is always set to `http://www.msn.com/webservices/AddressBook`.

### abId
This element contains your [Address Book Service](../abservice.md) GUID.

### groups
This element only contains `<Group>` elements

#### Group
This element contains three children:
* `<groupId>`: The GUID of the group to modify.
* `<groupInfo>`: Explained below.
* `<propertiesChanged>`: A space delimited list of changes made in `<groupInfo>`:
    * `GroupName`

##### groupInfo
This element contains only one child:
* `<name>`: The new name of the group.

# Server/Response
The template used in this action is described on the [Address Book Service](../abservice.md) main page.

## ABGroupAddResponse
This empty element has only one attribute:
* `xmlns:` Is always set to `http://www.msn.com/webservices/AddressBook`.