Hello,
Thank you for contacting Rank Math support, and sorry for any inconvenience that might have been caused due to that.
If somehow, you weren’t able to access the setup wizard after installing Rank Math, please click on the “cog” icon and this would reveal the setup wizard as you can see in the screenshot below:

If you don’t see the “cog” icon, then head over to your WordPress Dashboard > Rank Math > Dashboard > Help and you can connect your Rank Math account here.
Hope that helps.
Thank you.
Now I am having this exact issue – https://support.rankmath.com/ticket/google-search-console-cannot-be-connected/?bbp_reply_to=500374&_wpnonce=cb74e25467#new-post
I have followed along with the step suggested by the RankMath Support Staff in the forum without any success
Please advise
Hello,
We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.