How to create a category and apply it to an email

Question

Is it possible create a category in outlook programmatically?

I set up a hello world outlook-addin by following MS's tutorials. And I see how I have access to all the different properties of a particular email. However, I'm stumped about how to work with categories.

Answer 1

I had to pass in the following SOAP request through Office.context.mailbox.makeEwsRequestAsync() to create a category called "Muktader" and apply it to an email identified by the item id.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <t:RequestServerVersion Version="Exchange2013_SP1" />
  </soap:Header>
  <soap:Body>
    <m:UpdateItem MessageDisposition="SaveOnly" ConflictResolution="AlwaysOverwrite">
      <m:ItemChanges>
        <t:ItemChange>
          <t:ItemId Id="AAMkAGVlOTZjNTM3LWVjNjgtNGZlNi04MTBkLWIyNjNjNWEyY2VlNABGAAAAAABpsgv3HB+wQJRg4K+r7AmBBwBJi9ckXu/REb74AIBfn0G8AAAUrOs1AACN8cPrPdSYR5RdhR69ULJ0AAACOkAqAAA=" ChangeKey="CQAAABYAAACN8cPrPdSYR5RdhR69ULJ0AAACR0YO" />
          <t:Updates>
            <t:SetItemField>
              <t:FieldURI FieldURI="item:Categories" />
              <t:Message>
                <t:Categories>
                  <t:String>Muktader</t:String>
                </t:Categories>
              </t:Message>
            </t:SetItemField>
          </t:Updates>
        </t:ItemChange>
      </m:ItemChanges>
    </m:UpdateItem>
  </soap:Body>
</soap:Envelope>