Track shipments automatically and notify customers when status changes

flowchart TD trig(["runs once daily"]):::trigtime s0[("pulls active shipment list")]:::store s1[["checks tracking with courier"]]:::mi s2["updates spreadsheet if changed"]:::task s3["notifies customer of status"]:::task trig --> s0 s0 -->|"one per one per active shipment"| s1 s1 --> s2 s2 --> s3 gx{"+ which channels to notify"}:::gate s3 --> gx p00["sends whatsapp message"]:::task gx -->|"whatsapp update"| p00 p10["sends email message"]:::task gx -->|"email update"| p10 p00 --> out p10 --> out out[/"customers notified of shipment status"/]:::out pay{{"no manual tracking checks needed"}}:::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