I don't understood what ask me the google developer team on verifying the app

[stefanoerrani]

Good day.

I've created a Google App in order to interface my web application with Google services (calendar and contact).

I'm activated the verify of the app and now the Google team ask me:
"Comply with domain verification requirements
Make sure the domain verification process for your application in Search Console has been completed."
I don't understood what is the verification of the domain on google search console since it was verified years ago.

Can you help me please?

Best regards:

Stefano Errani