You can find the category path from HikaShop categories page. See attached screenshot. Here product category is the main level category under which you have parent-category and under this category there are two more categories child-category and child-category1. So the path starts from main level category to the last level category and each category separated by /. That would make category path as product category/parent-category/child-category and product category/parent-category/child-category1.