URL key for specified store already exists

`Magento: URL key for specified store already exists

Issue:

A product is trying to use the same URL of a product that already exists in Magento 2.x.

Applies to:

magento-2

Solution:

Magento 2.x does not allow duplicate product names, as it uses them to create URL keys. Update any duplicate product titles, then retry the relevant errors in the queue.