EWS Data Contact Property for OrganizationalIDNumber

Question

Using EWS Managed API 2.2, Microsoft.Exchange.WebServices.Data.Contact, I'd like to set the OrganizationalIDNumber property to store the employee number, but I cannot locate this or a similar property.

Please provide the code highlighting the contact property to use. Thanks!

Answer 1

You want to use Extended Properties(https://msdn.microsoft.com/en-us/library/office/dd633691(v=exchg.80).aspx) Below is my code to create a OrganizationalIDNumber where you can store integers (IDs)

var organizationalIdTag = 0x3A10;
var oContact = new Contact(pExchangeService);
oContact.setExtendedProperty(organizationalIdTag, <<INSERT string OF ID HERE>>);
oContact.Save();