docs/v3/api-ref/python/prefect-server-exceptions.mdx
prefect.server.exceptionsObjectNotFoundError <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/exceptions.py#L4" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>Error raised by the Prefect REST API when a requested object is not found.
If thrown during a request, this exception will be caught and a 404 response will be returned.
OrchestrationError <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/exceptions.py#L13" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>An error raised while orchestrating a state transition
MissingVariableError <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/exceptions.py#L17" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>An error raised by the Prefect REST API when attempting to create or update a deployment with missing required variables.
FlowRunGraphTooLarge <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/exceptions.py#L23" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>Raised to indicate that a flow run's graph has more nodes that the configured maximum