Duplicate product listings with the same SKU are common for unisex products, men's and women's pages, custom variants, and SEO-focused catalogs. Shopify still deducts stock from only the purchased variant. Spot solves that same-SKU listing problem without turning every location into one pool. It reads the live inventory change, finds matching listings in the same location group, and applies the delta only there, so retail, warehouse, and online stock stay independent and aligned by location too.

• Sync duplicate product listings that share the same SKU.
• Keep men's and women's product listings tied to the same stock.
• Match variants without forcing SKU forks.
• Keep retail and warehouse locations separate.
• Sync stock changes after live inventory reads to reduce oversells.