A Retail Express variable product matrix must contain unique sizes and colour combinations. Your eCommerce will not accept products that have duplicate sizes and colour combinations. The product error report in the comparison reports outline which products contain incorrect variable options.
Good
| Size | Colour | ProductId | Code – Manufacturer SKU | SKU – Supplier SKU |
| 8 | BLACK | 139996 | MMUL | MMULXS |
| 9 | BLACK | 139997 | MMUL | MMULS |
| 8 | WHITE | 139998 | MMUL | MMULM |
| 9 | WHITE | 139999 | MMUL | MMULL |
| Size | Colour | ProductId | Code – Manufacturer SKU | SKU – Supplier SKU |
| 8 | BLACK | 139996 | MMUL | MMULXS |
| 9 | BLACK | 139997 | MMUL | MMULS |
| 10 | BLACK | 139998 | MMUL | MMULM |
| 11 | BLACK | 139999 | MMUL | MMULL |
Bad
| Size | Colour | ProductId | Code – Manufacturer SKU | SKU – Supplier SKU |
| 8 | BLACK | 139996 | MMUL | MMULXS |
| 9 | BLACK | 139997 | MMUL | MMULS |
| 8 | BLACK | 139998 | MMUL | MMULM |
| 9 | WHITE | 139999 | MMUL | MMULL |