Assuming you have a short link like glossybox.tld/glossybox-may-2017 and this is showing you just "a missing page" info.


  1. Goto MAG > Catalogue > URL Rewrite Management
  2. search in "Request Path" column for glossybox-may-2017
  3. see ID of product in column Target Path
  4. search MAG > Catalogue > Manage Products for this ID
  5. check 
    1. Visibility
    2. Status

    

Sometimes the box was Duplicated (cloned) with wrong settings for URL key:

when dublicating then the checkbox "Create Permanent Redirect for old URL" below must be DEselected!


If you need to fix a wrong redirect: 

  1. save item with a new URL key value while having switched off the checkbox "Create Permanent Redirect for old URL"
  2. save item again with the original URL key value while having switched off the checkbox "Create Permanent Redirect for old URL".

this will overwrite the wrong URL key.


Or let DEV fix such rewrites


SELECT * FROM core_url_rewrite u WHERE u.id_path LIKE '%product/1253%' OR u.id_path LIKE '%product/1017%' OR u.target_path LIKE '%glossybox-may-2018%'
 OR u.target_path LIKE '%id/1253%'
  OR u.target_path LIKE '%id/1017%'
  OR u.request_path LIKE '%glossybox-may-2017%'
  OR u.request_path LIKE '%glossybox-may-2018%'
  OR u.product_id IN (1017,1253)



Also helpful: 


MAG > Index Management > Catalog URL Rewrites: Reindex Data