Hey @petermchoke
Triggering a video field to validate is a manual process as you’ve mentioned. The reason is that the Webflow API which is used by Zapier and other automation tools cannot trigger that validation process with the rich media embed service Embedly used by Webflow. This is a known limitation, unfortunately.
There is a workaround that bypasses Embedly. I’ve detailed that process in another thread here on the forum by utilizing the Youtube embed code and either the video ID or full URL from the CMS. Please check it out and see if that will work for your use case. Then follow and let me know how it goes.
Happy designing!