Recommend related products to repeat customers over WhatsApp

flowchart TD trig(["runs on a recurring schedule"]):::trigtime s0[["pull customer list"]]:::mi s1["find matching product"]:::task s2["check whatsapp eligibility"]:::task s3[("log outcome")]:::store trig --> s0 s0 --> s1 s1 --> s2 gx{"× can customer receive whatsapp"}:::gate s2 --> gx p00["send recommendation message"]:::task gx -->|"eligible"| p00 p10["skip customer"]:::task gx -->|"not eligible"| p10 jn{"○ log outcome"}:::gate p00 --> jn p10 --> jn jn --> s3 out[/"message sent or skipped and logged"/]:::out pay{{"more repeat sales with no 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