You can add contact and billing info such as email, address and tax ID and see in which sales-orders, products or storage locations a contact is referenced in as a customer or owner.
As with every other element in the app, you can also add custom fields to contacts.
Whenever manually creating a contact, an
ID will be auto-filled based on the name of the contact. This ID can be used to identify the contact other than by its name, and in particular when importing parts and inventory that belong to that contact. The contact's ID must be defined in order for the app to be able to find a contact whenever importing owned parts and inventory.