{ objectId: "",
}
{ objectId: "", customerId: "", // from SAP name: "", description: "", groupLeaders: [User] }
{ objectId: "", name: "", events: [Event] }
{ objectId: "",
}
{ objectId: "", user: User, journey: Journey, firstName: "", middleName: "", lastName: "", gender: "", email: "", birthdate: "", passportNo: ... }
{ objectId: "", createdBy: User name: "", location: "", startTime: endTime: travellers: [Travellers] }
{ objectId: "", text: "", photo: "", timestamp: location: createdBy: User }