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Accounts receivable automation, explained

What AR automation covers end to end, why billing, collections, and cash matching need one shared record, and what to check before trusting a vendor.

Sonic AI team

Finance operations

16 Sept 20263 min read

Order to CashThe full chain from signed deal to matched deposit and close.

Accounts receivable automation covers the full chain of what a company is owed and how it gets collected: generating the invoice, chasing it if it goes unpaid, matching the cash when it lands, and posting the result to the books. "AR automation" gets used loosely to mean any one piece of that — an invoicing tool, a dunning tool, a cash-application tool — but the actual AR problem only gets solved when those pieces share the same record.

The four jobs AR automation has to do

Job What it answers
Bill Did we invoice the customer correctly, for the right amount, on time?
Chase Is anything overdue, and is someone (or something) following up?
Match Did the cash that landed in the bank actually get tied to the invoice it paid?
Post Did the result reach the books, in a form an accountant can trust?

Most AR tooling in the market covers one or two of these well and treats the rest as an integration problem — connect this invoicing tool to that collections tool to that reconciliation spreadsheet. Every seam between separately-built tools is a place where the same invoice can show two different statuses at once.

Why a single record matters more than any individual feature

The AR pain finance teams actually describe is rarely "our invoicing is wrong" in isolation. It's some version of: "collections is chasing a customer who already paid," or "the aging report says one number and the bank says another," or "nobody can explain why this month's AR total doesn't tie to the invoices we can find." Every one of those is a synchronization problem between systems that don't share a record, not a feature gap in any single tool.

A billing schedule that produces an invoice, a collections sequence that reads that invoice's sent/paid status, and a bank-matching queue that updates that same status when cash lands — on one shared record — is what actually closes those gaps. Bolting three separately-built products together with webhooks approximates this, but every webhook is a place state can silently drift.

What "automated" should mean for each job

  • Billing: the invoice reflects a schedule or rated event, not a person's memory of what was agreed. Sent invoices freeze — a later correction is a new document, not a silent edit.
  • Chasing: only sent, unpaid invoices are overdue. A dunning cadence runs on schedule, pauses on a promise to pay, and stops the instant the invoice shows paid.
  • Matching: a bank deposit gets tied to the invoice it paid — by amount, reference, and payer identity — without someone manually cross-referencing a statement.
  • Posting: the revenue recognition entries and the AR ledger both trace back to the same invoice, so a journal line always has a clear answer to "why does this period have this amount."

What to check before trusting an AR automation vendor

  • Do billing, collections, and cash matching read and write the same invoice record, or are they connected products with their own copies of status?
  • Does overdue mean sent and unpaid, specifically — not every unpaid document regardless of send status?
  • Does a matched bank deposit actually stop the collections cadence, automatically, without a manual step?
  • Can the vendor show a journal entry that traces back to a specific invoice, or does revenue recognition happen independently of the billing record?
  • What happens to an issued invoice when something needs to change — does history silently rewrite, or does a correction become its own document?

Sonic AI runs billing, Watchtower collections, bank reconciliation, and revenue recognition on one invoice record per organisation — a payment match stops the chase automatically, and every journal entry traces back to its source invoice. See the platform in order, or the deeper mechanics on contract-to-cash is a chain, not a feature list and two systems, one truth.

Related terms: accounts receivable, contract-to-cash, days sales outstanding, issued invoice.

See it on the platform

Everything above describes how Sonic actually runs it — the product pages show the screens.

Related questions

Still have questions?

What is Sonic AI?

An AI-native billing platform for B2B finance teams. It reads what was agreed, runs the live billing schedule or rates each shipment, sends invoices, chases the late ones, matches bank deposits, and posts revenue — on one data model, per organisation.

Is this another invoicing tool with a chatbot?

No. The heart of the product is the billing schedule (for subscriptions) and the rated shipment (for freight). Agents read, draft, and suggest; operators approve. Math on amounts is not a prompt.

Do you process payments or file tax returns?

Sonic does not take the place of a payment processor, a tax engine of record, a general ledger of record, or a CPQ. Stripe and Razorpay can collect on an invoice. Your accountant still owns the books Sonic feeds.

See the full FAQ →

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A walkthrough on the agreements and files you actually bill from — not a slide deck.