Pricesmith

Pricesmith runs a flash sale across your catalog by rule — tag, vendor, type, SKU or metafield — and previews every variant before anything is written to Shopify. Move the old price to compare-at for a strike-through, price from cost per item to hold your margin, and schedule a sale that reverts itself. Every apply is snapshotted: one click restores exactly what was there. An append-only log records each change and its source. Import and export sets as CSV; quantity tiers apply at checkout.