Pflicht: customer_number, company. Optional: first_name, last_name, email, phone, street, zip, city, country, notes.

customer_number,company,first_name,last_name,email,phone,street,zip,city,country,notes
389,Sportzentrum St. Martin,Philipp,Schwarz,info@example.com,+39...,Jaufenstraße 6,39010,St. Martin,Italien,