Automatically chase unpaid invoices until they're paid

flowchart TD trig(["regular schedule check"]):::trigtime s0[["check tracker for unpaid invoices"]]:::mi s1["AI drafts reminder"]:::task s2["send reminder by email and messaging"]:::task trig --> s0 s1 --> s2 gx{"× how overdue is invoice"}:::gate s0 --> gx p00["draft polite reminder"]:::task gx -->|"newly overdue"| p00 p10["draft escalated reminder"]:::task gx -->|"long overdue"| p10 jn{"○ send reminder"}:::gate p00 --> jn p10 --> jn jn --> s1 lp{"invoice marked paid stops it"}:::gate s2 --> lp lp -. "waits for next scheduled check" .-> s0 lp -->|"finished"| out out[/"invoices paid faster"/]:::out pay{{"no manual payment follow-up"}}:::pay 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