Keep product prices in sync across Shopify and WooCommerce

flowchart TD trig>"price changed on a platform"]:::trig s0["detect price change"]:::task s1["apply platform pricing rules"]:::task s2["update price on other platform"]:::task s3[("log price change")]:::store trig --> s0 s0 --> s1 s1 --> s2 gx{"× change exceeds dollar threshold"}:::gate s2 --> gx p00["send email alert"]:::task gx -->|"large change"| p00 p10["no alert needed"]:::task gx -->|"small change"| p10 jn{"○ continue to logging"}:::gate p00 --> jn p10 --> jn jn --> s3 out[/"matching prices on both stores"/]:::out pay{{"prices always in sync, no double entry"}}:::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