When we’re talking about sources (or “party”), for customer data, the party being referred to is the source that collects and provides the data. There’s four different “parties” you can collect data from to learn more about your customers and their purchasing habits.
How this is data collected?
Data from third party researchers who collect and aggregate data from different sources like Websites or Social media networks using tools like surveys, interviews and feedback forms and are normally conducted on random sample sizes.