Every purchase a distributor makes produces four documents: the order sent to the supplier, the confirmation that comes back, the delivery note (DDT) that travels with the goods, and the invoice. All four must agree line by line on prices, quantities, codes, discounts, and delivery dates.

In Italian SME distributors this check is done by hand, on PDFs that all look different, spreadsheets, emails, and paper:

• Time. Three to four hours a day per operator, in the companies measured.
• Errors. Industry studies put discrepancies missed by manual matching at 5-15% (ProcIndex 2025, Ardent Partners 2024). Most companies check a sample, because checking everything is impossible.
• Scale. When orders double, headcount doubles.
• The ERP does not solve it. Italian ERPs reconcile structured data (electronic invoices via SdI, EDI). None of the systems mapped reads unstructured documents: PDF confirmations, scanned delivery notes, or email bodies. In one buying group of 27 distributors, 15 different ERPs were in use, none above 19% share.

Opsy sits on the company's email inbox (forwarded or in copy), reads attachments and bodies, and also accepts uploads, ERP exports, and photos of paper delivery notes sent to a WhatsApp number.

Three continuous operations:

1. Receives. Collects orders, confirmations, DDTs, invoices, and price lists from any supplier template, any format.
2. Compares. OCR and language models turn documents into structured lines; deterministic matching does the arithmetic across the full four-document chain, so there is no AI guesswork on numbers.
3. Executes. Only real discrepancies reach the operator, classified by type (price, quantity, code, date, missing document). For each one, Opsy opens the two documents at the exact line and drafts the rectification email or supplier reminder. The user reviews and sends with one click.

Opsy works alongside any existing ERP (Arca, Mexal, Gamma, TeamSystem, Zucchetti, Easy Data, and others) and does not replace it. Setup takes about 15 minutes by connecting the company mailbox.