Many fields, such as phone numbers, are not limited in terms of number.The Links fields in the contacts are used not only for specifying a client’s website, but also for links to internal documents in the cloud (e.g., company details).
If a great number of fields is required, for example, to specify the details of a Deal, the users frequently conduct a questionnaire or qualification at first contact via the free service from Google.Forms and then provide the link to the survey with responses about the Deal. Learn more about qualification in the summary.