Product variant: definition and role in PIM

In PIM practice, variants inherit shared values from the product model and hold only the values that differ. Each variant usually has its own SKU and GTIN, and sometimes its own images. Variant axes are defined per product family, for example size and colour for apparel or length and diameter for fasteners.

Illustrative example: a work glove model exists in five sizes and two colours, giving ten variants. The description, material and certification sit at model level, while size, colour, SKU and GTIN sit at variant level.

In a selection, variant handling causes more implementation trouble than almost any other modelling topic. Buyers should test multi-level variants, inherited and overridden values, and how each channel receives variants. Marketplaces and webshops expect variant groups in different formats, so the export scenario matters as much as the data screen.