Programmatically set Time Off for the System User in CRM 2011

We can make use of below sample code to set the Time Off for the user programmatically. In the below code we are setting time off of duration 8 hours on 7^th May 2013.


IServiceManagement<IOrganizationService> orgServiceManagement =
 ServiceConfigurationFactory.CreateManagement<IOrganizationService>(new Uri("https://orgname.crm5.dynamics.com/XRMServices/2011/Organization.svc"));

AuthenticationCredentials authCredentials = new AuthenticationCredentials();
 authCredentials.ClientCredentials.UserName.UserName = "user@domain.onmicrosoft.com";
 authCredentials.ClientCredentials.UserName.Password = "password";
 AuthenticationCredentials tokenCredentials = orgServiceManagement.Authenticate(authCredentials);

OrganizationServiceProxy organizationProxy = new OrganizationServiceProxy(orgServiceManagement, tokenCredentials.SecurityTokenResponse);

 // Get the user id
 Guid userid = ((WhoAmIResponse)organizationProxy.Execute(new WhoAmIRequest())).UserId;

// Get the calendar id of the user
 Entity systemUserEntity = organizationProxy.Retrieve("systemuser", userid, new ColumnSet(new String[] { "calendarid"}));

// Retrieve the calendar of the user
 Entity userCalendarEntity = organizationProxy.Retrieve("calendar", ((Microsoft.Xrm.Sdk.EntityReference)(systemUserEntity.Attributes["calendarid"])).Id, new ColumnSet(true));

// Retrieve the calendar rules defined in the calendar
 EntityCollection calendarRules = (EntityCollection)userCalendarEntity.Attributes["calendarrules"];

// Create a new inner calendar
 Entity newInnerCalendar = new Entity("calendar");
 newInnerCalendar.Attributes["businessunitid"] = new EntityReference("businessunit", ((Microsoft.Xrm.Sdk.EntityReference)(userCalendarEntity["businessunitid"])).Id);
 Guid innerCalendarId = organizationProxy.Create(newInnerCalendar);

// Create a new calendar rule and assign the inner calendar id to it
 Entity calendarRule = new Entity("calendarrule");
 calendarRule.Attributes["description"] = "Time Off Rule";
 calendarRule.Attributes["duration"] = 480;
 calendarRule.Attributes["extentcode"] = 2;
 calendarRule.Attributes["pattern"] = "FREQ=DAILY;INTERVAL=1;COUNT=1";
 calendarRule.Attributes["rank"] = 0;
 calendarRule.Attributes["timezonecode"] = 190;
 calendarRule.Attributes["innercalendarid"] = new EntityReference("calendar", innerCalendarId);

// starting at 12:00 on 7 May
 calendarRule.Attributes["starttime"] = new DateTime(2013, 5, 7,0,0,0,DateTimeKind.Utc);
 calendarRules.Entities.Add(calendarRule);

// assign all the calendar rule back to the user calendar
 userCalendarEntity.Attributes["calendarrules"] = calendarRules;
 // update the user calendar entity that has the new rule
 organizationProxy.Update(userCalendarEntity);

Entity calendarRule1 = new Entity("calendarrule");

// duration of 8 hours
 calendarRule1.Attributes["duration"] = 480;
 calendarRule1.Attributes["effort"] = 2.0;
 calendarRule1.Attributes["issimple"] = true;


 calendarRule1.Attributes["offset"] = 0;
 calendarRule1.Attributes["rank"] = 0;
 // subcode 6= vacation
 calendarRule1.Attributes["subcode"] = 6;
 // time code 2 = unavailable
 calendarRule1.Attributes["timecode"] = 2;
 calendarRule1.Attributes["timezonecode"] = -1;
 calendarRule1.Attributes["calendarid"] = new EntityReference("calendar", innerCalendarId);

EntityCollection innerCalendarRules = new EntityCollection();
 innerCalendarRules.EntityName = "calendarrule";
 innerCalendarRules.Entities.Add(calendarRule1);

newInnerCalendar.Attributes["calendarrules"] = innerCalendarRules;
 newInnerCalendar.Attributes["calendarid"] = innerCalendarId;
 organizationProxy.Update(newInnerCalendar);

Hope it helps