Example XML Request
<request>
<procedure>
<execute namespace="Managed Plans" procedure="AddFeaturesToPlan" impersonate="1">
<executeData>
<preferredDomainController>ad01.fabrikam.com</preferredDomainController>
<planName>BasicMail</planName>
<statusTypeName>Enabled</statusTypeName>
<features>
<feature>
<featureDescription>Exchange mailbox warning quota</featureDescription>
<featureName>WarningQuota</featureName>
<featureValue>22000</featureValue>
<unitDescription>kb</unitDescription>
<feature>
</features>
</executeData>
</execute>
</procedure>