Linking your Google Ads (FKA AdWords) account to your Google Search Console (FKA Webmaster) is one of those things that should be easy. And it can be, given the right credentials.
1. Log into Google Ads
2. Go to “Linked Accounts”
3. Select “Google Search Console”
4. Add the URL of the site you want to link and click “CONTINUE”
5. When successfully linked, it will look like below – if your AdWords and Google Search Console differ, continue