userId property

String? userId
getter/setter pair

A unique user identification string, as determined by the client.

To have the strongest positive impact on search quality make sure the client-level is unique. Obfuscate this field for privacy concerns before providing it to the service. If this field is not available for some reason, send "UNKNOWN". Note that any improvements to the model for a particular tenant site, rely on this field being set correctly to a unique user_id. The maximum number of allowed characters is 255.

Required.

Implementation

core.String? userId;