The LogicalLevel of a product defines the 'level' on which the product can be thought to sit in the hierarchy.
For example, the various different colors of a shirt can be thought to have LogicalLevel = 'color' and the actual SKU might have LogicalLevel = 'size' or 'sku'.
You are free to use any value, but it's recommended to keep this consistent between all products, or at least between products of the same kind, as it's a useful way to
structure a frontend by for example filtering on the color level and only show sizes when navigating to the product detail.
The LogicalLevel of a product defines the 'level' on which the product can be thought to sit in the hierarchy.
For example, the various different colors of a shirt can be thought to have LogicalLevel = 'color' and the actual SKU might have LogicalLevel = 'size' or 'sku'.
You are free to use any value, but it's recommended to keep this consistent between all products, or at least between products of the same kind, as it's a useful way to structure a frontend by for example filtering on the color level and only show sizes when navigating to the product detail.