Construction and related trades—about 6.0M SMBs in the EU in our target segment—face persistent billing friction: a mix of paper and low-quality PDFs, bespoke invoice formats, and new compliance endpoints (national portals, PEPPOL) that create manual rekeying, delayed payments and higher AR costs. That friction is especially acute for teams of fewer than 10 people who lack internal IT resources, which is why a $7.2B addressable market at a $1,200 ACV estimate is realistic but populated by customers who purchase through channels, not complex RFPs. A practical product would be a set of developer-first SDKs, pre-built invoice templates and automation tooling that convert heterogeneous PDF invoices into Factur‑X/PEPPOL-compliant payloads, plus connectors to common accounting APIs and national e-invoicing portals. Core features would include AI-driven OCR/NLP tuned for construction line items, a hosted mapping UI for non-developers, sample integrations that reduce time-to-live to weeks (not months), and deployment options for SaaS and on-premise to handle sensitive data and certification needs. This moment is attractive because regulatory mandates (Factur‑X/Chorus Pro and PEPPOL expansion) create immediate addressable demand and recent OCR/NLP improvements materially lower implementation cost and error rates. To stand out you should prioritize developer experience, certified templates for the largest national portals, measurable extraction accuracy (target >90%), and a channel-led GTM to reach SMBs; be honest that certification costs, fragmented accounting ecosystems and onboarding for low-IT customers are the main execution risks.