Opening post by ShopSearch
An example store sells the same chair in several colours and two sizes. A distinct URL for every selection might make sharing easier, but it also creates decisions about landing pages, availability and duplicate content.
I would begin by asking which variants represent meaningfully different shopping needs and whether a direct visit preserves the selected option. Then document the intended URL and canonical behaviour for each case.
Google's ecommerce URL guidance is a useful implementation reference.
What information would you want from merchandising before choosing one product page versus several variant pages?
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