VAST-2.0-wrapper-depth
Wrapper chain depth exceeds the configured maximum
ErrorStructureIAB VAST 2.0 §2.5VAST 2.0 and later (all versions)
VAST wrapper chains must be finite. Most players and SSPs enforce a maximum chain depth (commonly 3–5). Chains that exceed this limit are abandoned, resulting in no-fill. The vastlint default maximum is 5 wrappers.
How to fix
Reduce the wrapper chain by removing intermediate redirects, or negotiate a more direct tag from your supply partner.
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