SKU (Stock Keeping Unit)
A unique alphanumeric code assigned to each distinct product variant in a seller's inventory to track stock levels and differentiate products.
What is SKU (Stock Keeping Unit)?
Each product variant (size, color, material) typically has its own SKU. For product photography, each SKU may require its own image set — a shirt available in 10 colors × 5 sizes means 50 SKUs, each potentially needing color-accurate photography. AI product photography tools that can generate variant images from a base product photo dramatically reduce the photography cost of large variant catalogs.
E-Commerce Relevance
Large SKU counts (common in apparel and accessories) create major product photography challenges — each variant typically needs its own accurate product image.
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