Track invoice payments automatically with OCR, AI, and Notion

Reads incoming invoices, checks them against your records, and routes approvals through Slack into a Notion tracker.

How the work actually flows

It branches. Exactly one path is taken; a person has to approve before it continues.

Pattern: Exclusive Choice (4) · Simple Merge (5)

flowchart TD trig>"invoice or receipt received"]:::trig s0["extract invoice details with OCR and AI"]:::svc s1[("check Notion for matching invoice")]:::store s2(("request approval via Slack")):::human s3[("update Notion with payment status")]:::store trig --> s0 s0 --> s1 hg(("reviewer taps to approve")):::human s2 --> hg hg -->|"approved"| s3 hg -. "sent back" .-> s2 gx{"× new partial or fully paid"}:::gate s1 --> gx p00["flag as new invoice"]:::task gx -->|"new invoice"| p00 p10["flag as partially paid"]:::task gx -->|"partial payment"| p10 p20["flag as fully paid"]:::task gx -->|"fully paid"| p20 jn{"○ before requesting approval"}:::gate p00 --> jn p10 --> jn p20 --> jn jn --> s2 out[/"invoice status updated with approval trail"/]:::out pay{{"accurate invoice tracking without manual work"}}:::pay s3 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itAn outside serviceA personA record or sheetOne path onlyPaths rejoinResultPayoff
Build size
Advanced

A larger build with multiple systems, AI reasoning, and custom rules.

Business functions
Messaging & NotificationsDocument Processing & OCRImage & Media ProcessingFinance & Accounting
Connects
NotionSlackClaudeOCR.space

The problem it solves

You chase down invoice status by hand, digging through email attachments and spreadsheets to see what's paid, partially paid, or still owed. Mistakes and duplicate payments slip through when everything is tracked manually.

Who it fits

Finance teams or operations staff who process a steady stream of vendor invoices and receipts.

How it works

  1. A new invoice or receipt is dropped in
  2. OCR and AI pull out the vendor, amount, and invoice number
  3. The system checks Notion for a matching invoice and figures out if it's new, partial, or fully paid
  4. A Slack message asks a reviewer to approve the payment status with a single tap
  5. Notion is updated with the paid amount, status, and payment date
What you get

Invoice status you can confirm in one tap

Incoming invoices get matched against your records automatically, and a quick Slack tap lets you confirm what's paid, partial, or new.

What you get

An up-to-date invoice record in Notion and a Slack approval trail.

What you need

A Notion workspace, a Slack workspace, an Anthropic Claude account, and an OCR service.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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