Your client’s campaign is ready to run across four publishers, each with their own video creative specifications. One accepts 300x250-only companion ads, one requires VAST and vPaid tags, and the third hasn’t sent specifications.How should you traffic this campaign in order to accomodate the client’s needs?

The Publisher Spec library in Campaign Manager 360 allows you to define and apply specific video creative requirements for different publishers. This feature automatically transcodes your video assets to meet each publisher's unique specifications, including companion ad sizes, VAST/VPAID requirements, and other technical details. This ensures your creatives are compatible without manual adjustments for each publisher. Waiting for all specifications is inefficient and delays launch. Waiting for identical specifications is unrealistic, as publishers often have varied requirements. Using a single placement for all publishers would not address the differing creative specifications.