When setting up Competitions or Achievements, metadata in CompetitionLabs helps staff by showing product and member details in familiar terms, rather than by Id. Look-up services populate your Space with metadata on products and members in our system.
This service requests metadata from a member-specific endpoint that you implement. The endpoint accepts the member reference id that you send as part of your event stream and returns the metadata requested on that Member in JSON format, e.g. their display name, Country code, Currency code, etc.