SetLine replaces invoices and end-of-month reconciliation with a shared, dual-signed commercial timeline between buyer and seller. Each order flows through a canonical state machine: order → confirm → ship → receive → price/adjust → accept → settle. So, both parties agree to the same numbers as events occur. The platform runs real-time 3-way match (PO ↔ shipment ↔ receipt + price rules), opens time-boxed dispute workflows for the few arguments that ever happen (qty, price, tax, condition, timing), and then auto-nets payables/receivables across all open contracts before pushing payment via bank APIs. A contract engine codifies price lists, SLAs, rebates, Incoterms, and FX; a compliance exporter generates any mandated e-invoice/VAT files from the agreed event log (Peppol, SAF-T, KSeF, etc.). Drop-in ERP, WMS/TMS, and bank connectors make adoption incremental: mirror first, dual-sign next, then retire invoices with selected partners. Outcome: daily close, shorter DSO, fewer disputes, near-zero duplicates/fraud. This is pure software, no hardware, no services.

In my last role I was juggling 20+ supplier contracts every week. Every lane meant its own PDFs, portal logins, and “final_v7.xlsx”. A single PO arrived in partials, pricing changed mid-month, rebates posted after goods were received, and FX nudged totals again. The warehouse posted a receipt with one count, a supplier email had another, and AP would freeze payment until a “corrected invoice” showed up. Busy weeks turned into end-of-month war rooms: duplicate receipts, missed credits, vendors chasing cash, and me reconciling what two systems claimed about the same trade. What I wanted was simple: one shared timeline we both sign, where disagreements surface immediately, resolve on a clock, and settlement is just math. That’s exactly what I’m building. Our gateway maps each side’s ERP facts into a canonical schema; events are co-signed into a tamper-evident log. If something disagrees, a guided resolver requests evidence (carrier scans, photos, price tables), applies tolerances, and forces converge-or-escalate within SLA - no email ping-pong. Because the ledger is already agreed, we net positions across orders/returns/rebates and execute payouts through connected banks with auditable remittance. I go from firefighting receipts to closing daily - with fewer tickets, earlier cash, and calmer vendor relationships.