How to fix duplicate products in categories?

Question

Search Engine Optimization

Hello!
A question. There are 3 categories (catalogue of bags, men's bags and women's bags) under the main categories there are more subsections. The product is repeated in these categories. The catalog is the main category where women's and men's bags are stored. That is the general place where it is stored. And then on the shelves. Where men are in the category of men, and also with women. Duplicate products. How to properly remove them? Thanks in advance.

Answer 1

on what all this is implemented?
In principle, product lists can overlap as much as you like, these are dynamic pages, and products must have constant final URLs, such as site.tld/item/show/some-cool-stuff-buy-me-now
Accordingly, there should be no duplication. In the sense of "duplication" in lists, this is not duplication.