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When assigning a link for a widget CTA, a drop-down list with all the set URLs will be displayed for you to choose from.
Now you can download either the HTML5 package, or generate and copy a VAST/VPAID url or Javascript tag. If needed there is also the chance to extrapolate both Click Command and Tracking Url for the unit.
TRACKING
When third party redirect is not supported by the publisher, you can associate the tracking pixel and click command tags in order to keep track of impressions and clicks.
Below is a sample of a code generated by Connected-Stories for tracking code and command click: