Case Studies
Automation, integrations, accounting systems, and open-source engineering.
Tutorial: attach payout evidence without wrong matches
A scheduled n8n pattern that attaches payout PDFs to the right Lexware vouchers: destination pre-checks, explicit match states, dry runs, paced writes, and per-item audit outcomes.
Tutorial: design accounting automation that fails closed
A fail-closed n8n architecture for reconciling one SumUp business day at a time, persisting an immutable plan, recovering writes, and proving every Lexware result.
Tutorial: turn supplier PDFs into idempotent Lexware records
A production n8n pattern for parsing German supplier invoices, preserving printed tax buckets, detecting credit notes, avoiding duplicate vouchers, and attaching source evidence.