Business-to-business trade has its own legal framework: prices excluding VAT, evidence requirements for intra-community supplies, electronic invoice formats, contracts concluded through quotes, data protection for buyer accounts and, increasingly, requirements from accessibility and security regulation. The articles in this category set out what actually applies to shops and portals, which information has to appear where, and how obligations can be implemented technically without overloading the checkout. We name the points to check, the omissions we see most often and the interfaces to accounting and tax advisors. The articles do not replace individual legal advice, but they create a solid basis for those discussions. We also explain how to spread recurring reviews across the year so that changes to the assortment or to providers do not silently create new obligations.
Checking VAT IDs in the B2B shop: simple and qualified confirmation, 26 status messages of the interface, reverse charge wording and the evidence to retain.
Pictograms, hazard and precautionary statements, safety data sheets per language and version, supply blocks: how to map hazardous substance data in a B2B shop.
From 11 September 2026 the CRA reporting duty in Article 14 applies. Which duty starts when, who is a manufacturer and what must be visible in a B2B shop.
Declaration of conformity, void-space ratio and representatives per country: how B2B companies map the EU regulation PPWR from August 2026 in Shopware and ERP.
From 2 August 2026 Article 50 of the AI Act applies: what B2B shops must label for chatbots, generated images and product copy – and what they need not.
AWG amendment 2026: how to automate sanctions screening in a B2B store at four points, release matches through human review and log each check audit-proof.
E-invoicing mandate from 2027: how to generate ZUGFeRD and XRechnung per EN 16931 in your B2B store, receive invoices and connect to ERP and accounting.
Germany's Accessibility Strengthening Act in B2B: obligations since June 2025, WCAG 2.2 implementation, the micro-enterprise exemption and the first steps.