404 Error often occurs when the permalink is not set.The Permalink is either corrupt or altered..One Of the most often cause of woocomerce 404 error is when the .Htaccess file was tampered or changed.In this article i will be showing you How to fix woocommerce 404 error Product Page.
I will be assuming that you are using the Woocommerce Plugin.
What Cause woocommerce 404 error
A changed of the .Htaccess file .When you have Renamed Htaccess to something else like Htaccess-old.
How to fix woocommerce 404 error Product Page
Navigate to Your WordPress--Settings>>>Permalinks
Under common settings. Select Post Name
Within the Option Menu.Put These In the box
Product category base-------/shop
Product tag Base-------------product-tag
Now that you have set the Product Category Base Page To Shop ..The Product Permalink base should be set now.
Below Option You will see Product permalink base.
Select the Custom Base Tab and Place this in it
Click Save Changes!!
Now Reload the Page and you should not see 404, page cannot be found error..