Re-add WordPress Menu items to corrupted/incorrectly linked product-category items

We have a WordPress website with about 400 Menu items on the Main Navigation of the website. Those menu items are Product Categories for products that were added to this ecommerce site. For some reason, some of those item categories, do not correspond to the proper category, and they just need to be redone. Here are the steps need to complete the job: 1. Go to [login to view URL] to view the "Categories Main Nav Menu" 2. Drop down each Menu item 3. Ensure that the Navigation Label matches the Linked Category Page 4. If it doesn't match it, you need to do the following: 4A) Go to "Product categories" on the left hand side 4B) Go to "Search" Tab 4C) Search the Navigation Label's name of the menu item that doesn't have a matched category page 4D) Add to the menu 4E) Move up the newly added menu item to the same order of the corrupt menu item 4F) Delete old corrupt menu item Ensure you save the menu once every few items fixed to ensure non-loss of work done