LOGO CRM offers an extensive customer file but also the option of entering new contact details quickly, where it's not clear if this lead is ever going to become a customer. You can gather business card details, fair and other contacts. That way, contact information doesn't get lost, but also won't factor into statistics and customer lists. The screen to create a Lead is the same as for a customer, only the required fields are different. Here, only company name and last name of the contact are required. That way you can enter and save incomplete contact details.