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| Vast Error Code | Description | Occurrence | Notes |
|---|---|---|---|
| 1601 | VAST XML Parsing Error | Pre-Ad | Invalid XML in vast response |
| 1604 | Error No Bid | Pre-Ad | No bid received from demand partner |
| 1605 | HTTP timeout while requesting VAST | Pre-Ad | Timed out before getting a vast response from bidder |
| 1606 | HTTP error while requesting VAST | Pre-Ad | Generic HTTP Error getting a vast response from bidder |
| 1607 | No HTTP response from VAST request | Pre-Ad | No HTTP response received |
| 1608 | HTTP 4XX status from VAST request | Pre-Ad | HTTP 400 Status Code in vast response |
| 1609 | HTTP 5XX status from VAST request | Pre-Ad | HTTP 500 Status Codes in vast response |
| 1610 | all other non HTTP 200 status codes from VAST request | Pre-Ad | catch-all in case this is something not in error codes 1605 through 1609 |
| 1611 | VAST request timeout | Pre-Ad | Response took longer than maximum allocated time |
| 1612 | Wrapper chain timeout | Pre-Ad | wrapper chain exceeded max auction duration |
| 1613 | Bad Demand Tag Endpoint URL | Pre-Ad | Endpoint URL with spaces, &'s or other un-parseable and/or invalid characters. |
| 1614 | Max number of wrappers for SSB | Pre-Ad | Number of wrappers more than 3 |
| 1615 | Bid below the floor | Pre-Ad | Bid received had a value below bid floor |
| 1616 | Mixed Content Error | Pre-Ad | http ad returned for https ad call |
| 1619 | No Duration | Pre-Ad | On ad pods the vast is missing <duration> attribute |
| 1620 | Invalid URL in wrapper | Pre-Ad | Invalid URL found in wrapper |
| 1621 | Invalid URL in redirect | Pre-Ad | Invalid URL found in redirect while getting demand |
| 1622 | Invalid Json | Pre-Ad | The JSON rendered was invalid |
| 1623 | Not included in ad pod | Post-Ad | |
| 1624 | Empty Vast Response | Pre-Ad | |
| 1625 | Only VPAID ad(s) returned but not allowed | Pre-Ad | |
| 1626 | Ad discarded due to pod opt out | Post-Ad | Ad(s) were returned but the pod opted out due to too many empty slots |