Update AVETMISS Details for a Client by passing a TClieAVETMISS object. 

Returns a TAuthenticate object. 

The new Client AVETMISS Details are represented by a TClieAVETMISS parameter (cavClient). All properties of cavClient are used for the update, so ensure any properties which are to remain unchanged are populated with current values. 

A token is passed for authentication. If the authentication fails, or other errors occur, no client AVETMISS details are updated. The result of the authentication and update is represented by a TAuthenticate object. 

This function has security level "Restricted". Users that have explicitly been granted permission to the API can use it with any parameters, otherwise, the logged-in client can only access their own data.

[WebMethod(Description = "Updates the AVETMISS data for a client to that specified")]
public TAuthenticate UpdateClientAVDetails(string sToken, TClieAVETMISS cavClient);