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VAST-2.0-html-display-tag

This is an HTML display tag, not a VAST document

Input is an HTML display ad tag, not a VAST document

ErrorConsistencyIAB VAST 2.0 §2VAST 2.0 and later (all versions)

Short answer

A display ins, iframe, or img tag cannot be rewritten into VAST. In-stream placements in Campaign Manager 360 export a separate pre-fetch (pfadx) tag. Wrapping this HTML in HTMLResource will not make a player play it as video.

The paste is an HTML display tag (Campaign Manager 360 ins, iframe, or img), not a VAST document. In-stream video placements export a separate pre-fetch VAST tag (`pfadx`). Wrapping this HTML in `<HTMLResource>` will not make a player play it as video.

Why this matters in production

This rule is usually a delivery blocker. Many players, SDKs, and ad servers will discard the response or skip the affected creative once this condition is hit. Consistency rules catch documents that technically contain the right pieces but combine them in ways that produce conflicting signals for downstream systems. Affected scope: VAST 2.0 and later (all versions).

How to fix

Export the in-stream VAST pre-fetch tag from the video placement in Campaign Manager 360. Do not rename this HTML to VAST or wrap it in HTMLResource; a player cannot play a display ins tag as video.

Invalid

<ins class='dcmads' style='display:inline-block;width:970px;height:250px'
  data-dcm-placement='N0000.SITE/B0000.0000'
  data-dcm-rendering-mode='script'
  data-dcm-https-only>
  <script src='https://www.googletagservices.com/dcm/dcmads.js'></script>
</ins>

Valid

https://ad.doubleclick.net/ddm/pfadx/N0000.SITE/B0000.0000;sz=0x0;ord=[timestamp];dcmt=text/xml;dc_vast=4;ltd=
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Other Consistency rules

VAST-2.0-parse-errorXML parse error — document may be malformedVAST-2.0-version-mismatchDeclared version does not match structural signalsVAST-2.0-duplicate-impressionDuplicate <Impression> URL within the same <Ad>VAST-4.1-verification-duplicate-vendor<AdVerifications> contains duplicate vendor identifiers