How can I generate the Sitelink data in Google Analytics?
Thanks for your question.
As the Sitelinks data is new in the GA interface, it's not yet available through the GA reporting API. Some data is however available through our AdWords connector. Please find Extension type and Extension status in the Split By section. The actual site links can't be retrieved to our knowledge. If you do find this feature in AdWords API, please inform us.
Heidi / Supermetrics