If you are getting 404 errors in Google webmaster for deleted pages or renamed URL and want to handle this error then you can resolve it making some settings in blogger.Steps –
1. Login in blogger account
2. Go into Settings > Search Preferences
3. Go in Error and redirection section –
4.Error and redirection contains two things “custom page not found” and “custom redirects”, you may change first custom page not found with any message as ” Sorry ! Page Not Found, Search My Blog Or or provide a fancy HTMLTML to display a message.This message will display if someone typed the wrong URL in browser.
5. Custom redirects –
After deleting or renaming the URL, required to make all custom redirect for other URL, see below examples as shown here –
Here is “From” indicates to old URL Link and “To” to New URL Link. I had renamed the URL and when I tried to see the browsing the same URL, I got the 404 error, so to avoid this I had given here new URLs after renamed or deleted.