There are three ways to find you Support Entitlement Number (SEN):

Select Administration >> License Details. The SEN is shown:

Your Support Entitlement Number is available in http://my.atlassian.com:

Your Support Entitlement Number (SEN) appears on the third page of your Atlassian Invoice.

See How to find your Support Entitlement Number (SEN) in the support space for more general information about how Atlassian Support uses this number.

(warning) The information on this page does not apply to Confluence OnDemand.