This method accepts an XML document containing information about the properties available in the account. The required parameters are the username and password of the account. The account APIKEY can be used as the password.
The action attribute for each room and property must be set to one of the following keywords or it will be ignored, "new", "delete" or "modify"
The XML should be in the format returned by XML getProperties. When modifying fields, only the modified fields need to be included in the XML.
<request> <auth> <username>username</username> <password>password</password> </auth> <properties> XML content for 1 or more property in the format returned by XML getProperties </properties> </request>