# Preview Recommendations

Ranked recommendations for a hypothetical reading history, without a real reader session behind it. Answers 501 when the tenant's configured engine cannot preview, and 502 when it can but is unreachable.

## Request[​](#request "Direct link to request")

## Responses[​](#responses "Direct link to Responses")

* 200
* 401
* 422

Unauthenticated

Validation error