Send personalized upsell offers based on what customers bought

flowchart TD trig>"new order comes in"]:::trig s0["read order details"]:::task s1["write personalized upsell email"]:::svc s2["send email after delay"]:::task s3[("log the send")]:::store trig --> s0 s0 --> s1 s2 --> s3 gx{"× is order high value"}:::gate s1 --> gx p00["standard upsell offer"]:::task gx -->|"standard order"| p00 p10["vip upsell offer"]:::task gx -->|"vip order"| p10 jn{"○ merge before sending"}:::gate p00 --> jn p10 --> jn jn --> s2 out[/"personalized upsell email sent"/]:::out pay{{"relevant follow-up on every order"}}:::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