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plcmt=5 With playbackmethod=1 Validates. Those Two Integers Name Different Formats.

A trafficking template copies last quarter's instream tag, changes one field to pause inventory, and ships. The VAST response validates.

  • Two integers plcmt=5 and playbackmethod=1 represent different video formats
  • IAB's CTV Ad Portfolio finalized in July 2026 expands transactable video formats
  • OpenRTB supports video.plcmt values 5 through 9 for new ad formats

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