MUST HAVE info to fill:

I. General > Your Info

  • Website Name
  • Company or person

II. General > Webmaster Tools

  • Bing Webmaster Tools
  • Google Search Console

III. Social > Accounts

  • Facebook Page URL
  • LinkedIn URL
  • Google+ URL

*If not available ask the clients in notes or offer to create it for them

For Google Analytics Code, DO NOT EDIT header.php.
Google Analytics code should be installed through Yoast plugin.