Product launches and promo pushes are where “Shopify → Pinterest automation” usually breaks: asset prep, pacing, retries, and knowing what actually published. Here’s a practical workflow that treats Pinterest publishing like a job system—queued, scheduled, bulk-safe, and observable—so launches don’t depend on manual uploads or brittle scripts.

Scheduling Pinterest pins from code sounds straightforward until you hit timezone math, delivery windows, state transitions, and silent failures. Here's what it actually takes to build reliable pin scheduling, and where the complexity hides.