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Nika

Supplier Invoice Workflow: End-to-End Example

This example follows a supplier invoice through a manufacturing company's full workflow — from arrival in the AP inbox, through goods-receipt matching and approval routing, to payment scheduling. Manually, each invoice touches four people and takes 8–10 calendar days from receipt to payment-ready. With Nika the same invoice is read, matched to a purchase order and goods receipt, routed to the right approver, and scheduled — in under a day, at {price} per processed invoice.

Before: manual process

A manufacturing company receives a supplier invoice from Stahlbau GmbH for €18,450.00 — steel components against PO-2025-0312. The invoice lands in the AP shared inbox. The AP clerk opens it, downloads the PDF, looks up the PO in the ERP, confirms the goods were received (goods receipt GR-8841 for the same quantity), enters the invoice as a draft, and routes it to the operations manager for approval. The operations manager is in meetings all day; she approves it the next morning. The invoice then goes to finance for payment scheduling, where it sits in a batch until the next payment run — Tuesday week. From receipt to payment-ready: 8 calendar days. Along the way, nobody notices that a second copy of the same invoice was forwarded by a colleague — the duplicate sits in the inbox until the clerk processes it and the ERP rejects the duplicate number.

After: with Nika

The same Stahlbau invoice arrives. Nika reads it, identifies PO-2025-0312 from the invoice reference, matches it to goods receipt GR-8841 (quantity and amount tie out), and posts it as a three-way-matched record. She routes it to the operations manager with a one-line brief: "Stahlbau €18,450 matched to PO-0312 and GR-8841 — approve for payment." The duplicate copy forwarded by the colleague is detected and silently discarded with a note: "duplicate of INV-SB-0448, already in workflow." The operations manager approves from her phone between meetings. Finance sees the approved invoice in the payment schedule, aligned to Stahlbau's 30-day terms, and it is paid on the next run — 4 days after receipt, not 8. Cost: {price} per processed invoice.

Workflow

  1. 1

    Receive & read

    In: Email from Stahlbau GmbH — invoice INV-SB-0448, €18,450.00, PO ref PO-2025-0312
    Out: Invoice parsed: vendor, amount, PO number, line items, terms
    Saved: ~3 minutes vs. manual download, open, and data entry
  2. 2

    Three-way match

    In: Invoice + PO-2025-0312 + goods receipt GR-8841
    Out: Match confirmed: quantity 500 units, unit price €36.90, amount ties out
    Saved: ~5 minutes vs. manual ERP lookup and comparison
  3. 3

    Duplicate detection

    In: Second copy of INV-SB-0448 forwarded by colleague
    Out: Duplicate identified by invoice number, silently discarded with note
    Saved: Prevents a duplicate payment before it enters the workflow
  4. 4

    Route & schedule

    In: Matched invoice + approver rules
    Out: Routed to operations manager; on approval, scheduled to 30-day terms
    Saved: 8 days → 4 days receipt-to-payment

Cost comparison

MethodCostTime
Manual — AP clerk + 2 approvals (€25/hr, 20 min labour)€8.30 / invoice in labour8–10 calendar days
ERP workflow module (subscription + setup)Typically €500–2,000 / month, amortised over volume3–5 days with manual exception handling
Nika (per processed invoice){price} / invoiceUnder 1 day; payment scheduled on approval

Key takeaways

  • Three-way matching (invoice ↔ PO ↔ goods receipt) happens automatically — variances are flagged, not discovered at payment.
  • Duplicate invoices are caught at receipt, before they enter the workflow — not rejected by the ERP after manual processing.
  • Approval routing is instant: the operations manager gets a brief with the match already confirmed, not a PDF to investigate.
  • Receipt-to-payment drops from 8 days to 4 — and the 4 days are terms-driven, not process-driven.

Questions

What if the invoice does not match the PO or goods receipt?

Nika holds it with the variance explained: "quantity 520 on invoice vs. 500 on GR-8841 — confirm receipt." The approver sees the specific discrepancy, not a vague "please review." You are not charged for invoices held in the exception queue — only for those successfully matched and posted.

Does Nika actually schedule the payment, or just prepare the record?

Nika prepares the record and aligns it to the supplier's payment terms in your payment schedule. The actual payment run — releasing funds — remains a finance action in your ERP or banking system. Nika does not move money; she makes sure the right invoice is ready at the right time.

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