A 404 error is the status code a server returns when a requested page cannot be found. Many 404 errors from links, users or search engines trying to reach a page can hurt the user experience and waste crawl budget. Important pages returning a 404 should either be rebuilt or redirected.
A deleted campaign page that is still linked to can trigger a 404 error and should usually be redirected to a relevant page.
Read on
More on seo and optimisation:
Book a free 30-minute call and we will translate the theory into something that moves your numbers.