I tried to make a connection with Google Drive and followed all the instructions of the detailed documentation
Nevertheless the system always ended telling me about an integromat connection.
I was advised by the documentation that i could happen, and so I continued.
My issue appeared in the last step, when at Google I was asked to accept the connection. It said me that there was a bad redirection and ended.
So, I entered in the console and erased the integromat.com dominion, and it worked.
Hope this could help someone