Can Customers Leave a Google Review Without Gmail?
They need a Google account, but that does not have to be a Gmail address, any email can be used to create one. So a customer without Gmail can still review; they just sign in with a Google account first.
This is a common reason people click your link but do not finish, so make the ask easy and reassure them it only takes a minute.
Related guidesWhy Is My Google Review Not Showing? →How Long Does a Google Review Take to Appear? →Can a Business Remove a Bad Google Review? →Why Did Google Remove One of My Reviews? →