We recently extended the migration deadline to adopt parallel tracking for Video campaigns to June 15, 2020. Given the current environment where businesses may have other priorities, we are extending the deadline indefinitely to give everyone extra time to make this transition. We will provide ample notice of a new deadline at a later date. If you've already completed most of the work needed to adopt parallel tracking, you are still welcome to finish the process and opt-in.
Posted by Nicky Rettke, Director of Product Management, Google Video Ads