Information related to how and why a fallback result was used. If this field is set, then it means the server used a different routing mode from your preferred mode as fallback.
The reason why fallback response was used instead of the original response. This field is only populated when the fallback mode is triggered and the fallback response is returned.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-27 UTC."],[],["The core content details a fallback mechanism used when the server cannot fulfill the preferred routing mode. It provides information in JSON format, including the `routingMode` used for the response and the `reason` for the fallback. The `routingMode` may differ from the client's preference, and the `reason` field explains why an alternate mode was employed. This information is only included when fallback occurs, indicating a deviation from the initial request.\n"]]