Pull invoice data from Gmail PDFs into Sheets and Airtable

flowchart TD trig>"invoice PDF arrives by email"]:::trig s0["confirm genuine invoice attachment"]:::task s1["extract invoice data with AI"]:::task s2["route by confidence and value"]:::task s3[("save to sheet, Airtable, Drive")]:::store trig --> s0 s0 --> s1 s2 --> s3 gx{"× is invoice low-risk"}:::gate s1 --> gx p00["log automatically"]:::task gx -->|"straightforward invoice"| p00 p10["send to review queue"]:::task gx -->|"flagged invoice"| p10 p11["alert via Slack or Gmail"]:::task p10 --> p11 jn{"○ resume processing"}:::gate p00 --> jn p11 --> jn jn --> s2 out[/"invoice logged, risky ones flagged"/]:::out pay{{"less manual entry, fewer errors"}}:::pay s3 --> out out --> pay esc(("Alerts a person")):::human s2 -. "if it fails" .-> esc esc -.-> out 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