A video opportunity can fail at any demand hop, during media selection or inside the player. A useful diagnostic path preserves enough context to locate that boundary.
Follow the wrapper chain
Operators should see the sequence of wrapper URLs, response status and time spent at each hop.
- Wrapper depth
- Endpoint response
- Elapsed time
- Final creative
Classify errors
Transport failures, malformed VAST, unsupported media and player errors are different problems and should not share one generic failure label.
Protect the playback window
Timeouts must reflect the user experience and the remaining delivery budget, not only the preference of an upstream demand partner.
Product accuracy
This guide describes Nexus product architecture and general AdTech operating concepts. Exact enforcement and integration behavior depends on the enabled revenue engine and agreed deployment configuration.