Automate customer emails across the Stripe subscription lifecycle

flowchart TD trig>"subscription lifecycle event fires"]:::trig s0["ai writes personalized email"]:::svc s1["send email and update record"]:::task s2["alert team on slack"]:::task trig --> s0 s1 --> s2 gx{"× which lifecycle event"}:::gate s0 --> gx p00["proceed to email"]:::task gx -->|"signup or plan change"| p00 p10["flag for follow up"]:::task gx -->|"failed payment"| p10 jn{"○ continue processing"}:::gate p00 --> jn p10 --> jn jn --> s1 lp{"one reminder after a few days"}:::gate s2 --> lp lp -. "payment still unpaid" .-> s1 lp -->|"finished"| out out[/"lifecycle emails sent automatically"/]:::out pay{{"no customer moment missed"}}:::pay out --> pay s1 -. "retries on failure" .-> s1 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