of our products and services by newsletter) Master data Article 6 paragraph 1 points (a) and (f) GDPR Events for and with customers (e.g. trade fairs) Master data, travel data and preferences with regard [...] data and categories of personal data we obtain from our business partners and their employees: - Master data (e.g. surname, first name, title, function/post at the company, business phone number, business [...] communication and initiating and conducting a business relationship (customer support, lead generation) Master data; documentation of business transactions; communications data (e.g. content of contact requests