can be found in Art. 6 subsection 1 sentence 1 under a, b and f GDPR. 20. Productregistration; software updates Certain products can be registered with us and/or insured against breakage and theft. In addition [...] addition, you can register on our websites for a software update. For registration, such data as your identification and contact data and product data are required. Should you supply these in our contact form [...] ly obliged to transmit data of the optician’s such as customer IDs, address data, item numbers, product descriptions, sales figures, discounts and customer complaints to the license partner. Examples for