VAST-4.0-interactive-creative-no-api
<InteractiveCreativeFile> should have an apiFramework attribute
Short answer
<InteractiveCreativeFile> without an apiFramework attribute leaves the player unable to determine the interaction protocol. SIMID is the recommended value for modern interactive ads.
Why this matters in production
This rule is a strong risk signal. Tags with this issue often still parse, but they become brittle across SDKs, SSAI resolvers, and CTV environments. Required-field failures usually stop validation early because the platform cannot determine the basic shape of the ad, the creative metadata, or the mandatory tracking payload. Affected scope: VAST 4.0, 4.1, 4.2, and 4.3.
How to fix
Add apiFramework="SIMID" (or the correct API name) to <InteractiveCreativeFile>.
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