VAST-4.1-tracking-event-value
Tracking event attribute not in the valid set for this VAST version
ErrorValuesIAB VAST 4.1 §2.4.1VAST 4.1, 4.2, and 4.3
The `event` attribute on `<Tracking>` must be one of the valid values for the declared VAST version. An unrecognised event name will be silently ignored by players.
How to fix
Replace the invalid event value with one from the allowed set for your declared VAST version — refer to the spec table for your version.
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VAST-4.1-tracking-event-value and other issues instantly.Validate a tag →Other Values rules
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