From VAST 3.0 Spec (PDF)
| Code | Description |
|---|---|
| 100 | XML parsing error. |
| 101 | VAST schema validation error. |
| 102 | VAST version of response not supported. |
| 200 | Trafficking error. Video player received an Ad type that it was not expecting and/or cannot display. |
| 201 | Video player expecting different linearity. |
| 202 | Video player expecting different duration. |
| 203 | Video player expecting different size. |
| 300 | General Wrapper error. |
| 301 | Timeout of VAST URI provided in Wrapper element, or of VAST URI provided in a subsequent Wrapper element. (URI was either unavailable or reached a timeout as defined by the video player.) |
| 302 | Wrapper limit reached, as defined by the video player. Too many Wrapper responses have been received with no InLine response. |
| 303 | No Ads VAST response after one or more Wrappers. |
| 400 | General Linear error. Video player is unable to display the Linear Ad. |
| 401 | File not found. Unable to find Linear/MediaFile from URI. |
| 402 | Timeout of MediaFile URI. |
| 403 | Couldn’t find MediaFile that is supported by this video player, based on the attributes of the MediaFile element. |
| 405 | Problem displaying MediaFile. Video player found a MediaFile with supported type but couldn’t display it. MediaFile may include: unsupported codecs, different MIME type than MediaFile@type, unsupported delivery method, etc. |
| 500 | General NonLinearAds error. |
| 501 | Unable to display NonLinear Ad because creative dimensions do not align with creative display area (i.e. creative dimension too large). |
| 502 | Unable to fetch NonLinearAds/NonLinear resource. |
| 503 | Couldn’t find NonLinearresource with supported type. |
| 600 | General CompanionAds error. |
| 601 | Unable to display Companion because creative dimensions do not fit within Companion display area (i.e., no available space). |
| 602 | Unable to display Required Companion. |
| 603 | Unable to fetch CompanionAds/Companion resource. |
| 604 | Couldn’t find Companion resource with supported type. |
| 900 | Undefined Error. |
| 901 | General VPAID error. |