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Unsubscribe Operation

Topic Last Modified: 2008-09-04

The Unsubscribe operation is used to end a pull notification subscription. Use this operation rather than letting a subscription timeout. This operation is only valid for pull notifications.

The following example shows the SOAP XML message that is sent to unsubscribe a client from the Notification service.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">
  <soap:Body>
    <Unsubscribe xmlns="http://schemas.microsoft.com/exchange/services/2006/messages">
      <SubscriptionId>e6fbf5c1-7e26-4bc6-a5f2-882063d5e34e</SubscriptionId>  
    </Unsubscribe>
  </soap:Body>
</soap:Envelope>

The following elements are used in the request:

The following example shows a successful response to an Unsubscribe request.

<?xml version="1.0" encoding="utf-8" ?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
               xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Header>
    <t:ServerVersionInfo MajorVersion="8" MinorVersion="0" MajorBuildNumber="628" MinorBuildNumber="0" 
                         xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" />
  </soap:Header>
  <soap:Body>
    <UnsubscribeResponse xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" 
                         xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" 
                         xmlns="http://schemas.microsoft.com/exchange/services/2006/messages">
      <m:ResponseMessages>
        <m:UnsubscribeResponseMessage ResponseClass="Success">
          <m:ResponseCode>NoError</m:ResponseCode>
        </m:UnsubscribeResponseMessage>
      </m:ResponseMessages>
    </UnsubscribeResponse>
  </soap:Body>
</soap:Envelope>

The following example of an Unsubscribe error response occurs in response to an attempt to unsubscribe by using a subscription identifier that cannot be located in the Exchange store.

<?xml version="1.0" encoding="utf-8" ?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
               xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Header>
    <t:ServerVersionInfo MajorVersion="8" MinorVersion="0" MajorBuildNumber="628" MinorBuildNumber="0" 
                         xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" />
  </soap:Header>
  <soap:Body>
    <UnsubscribeResponse xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" 
                         xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" 
                         xmlns="http://schemas.microsoft.com/exchange/services/2006/messages">
      <m:ResponseMessages>
        <m:UnsubscribeResponseMessage ResponseClass="Error">
          <m:MessageText>The specified subscription was not found.</m:MessageText>
          <m:ResponseCode>ErrorSubscriptionNotFound</m:ResponseCode>
          <m:DescriptiveLinkKey>0</m:DescriptiveLinkKey>
        </m:UnsubscribeResponseMessage>
      </m:ResponseMessages>
    </UnsubscribeResponse>
  </soap:Body>
</soap:Envelope>
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