The Content endpoint is used to retrieve the list of products and listing content from the client for onboarding purposes. Groupon will make subsequent calls to fetch Availability and Pricing after the client's listing has been created.
Groupon calls the Content API to get information about services to build a full service catalog for a merchant client. The merchant id used in the API call is unique to a location. Therefore the service ids are also expected to be unique by location in return.