Selling jeans in 5 sizes and 4 colors means 20 combinations. Managing those 20 variants cleanly — stock, price, images, SKU — without blowing up the back-office, that is the whole challenge of PrestaShop combinations.
Combinations vs declinations: the terminology changed
PrestaShop 1.4 and 1.6 used the term declinations. Since version 1.7, the official term is combinations. Same concept, same behavior. If you are reading PrestaShop 1.6 documentation, “declination” = “combination”.
The attributes → values → combinations structure
PrestaShop organizes this in three levels:
- Attribute group (e.g., “Size”, “Color”)
- Attribute values (e.g., S, M, L, XL in “Size”)
- Combination: assembly of values on a product (T-shirt → Size M + Color Blue)
Groups and values are global (shared across all products). Combinations are specific to each product.
Auto-generating combinations
In a product listing → Combinations tab → “Generate combinations”. Select groups and values, PrestaShop creates the Cartesian product. 5 sizes × 4 colors = 20 combinations in 30 seconds.
Auto-generation (back-office)
Manual creation
CSV import + Seegea
Fields of a combination
- Reference (SKU) — unique per combination
- EAN / UPC — specific barcode
- Impact price — added or subtracted from the parent price
- Impact weight — for shipping costs
- Quantity — dedicated stock
- Images — 1 to N photos specific to this combination
- Default combination — displayed first on the product page
Stock and combinations: the classic mistake
Once a product has combinations, its parent stock is calculated automatically as the sum of combination stocks. Editing the parent stock directly does not work. You must update each combination.
Images per combination: the detail that changes everything
Assigning a specific image per color improves conversion rate by 15 to 25%. In the product listing → Images: check the image, then associate it with the relevant combinations. For 500 combinations, Seegea handles this by drag & drop.
| Operation | Native back-office | Seegea |
|---|---|---|
| Generate 100 combinations | A few clicks | A few clicks |
| Edit impact prices in bulk | 1 by 1 (impractical) | 5 min (paste) |
| Assign images to 200 combos | 1h drag & drop | 10 min bulk |
| Update stock for 1,000 combos | Impossible | 5 min (CSV paste) |
| Rollback on error | Impossible | Ctrl+Z per combination |
Manage your PrestaShop combinations from a modern grid
Google Meet · demo on your catalog
Conclusion
PrestaShop combinations are powerful but demanding: dedicated stock, specific images, impact prices, unique SKUs. For catalogs with more than 100 variant products, the native back-office hits its limits. Seegea fills exactly that gap with an inline tabular grid, full rollback and compatibility with 1.7, 8 and 9.
Official Seegea PrestaShop module v3.9.1. Built in France between Annecy and Chantilly.