This option can be a problem for accounts in the same family.
For this, it is recommended to use the family profiles (in case two or more people want to use the same email).
You can leave the email space blank and in the family members section, you can choose the user linked to it.
In order for them to use the same email address, be sure to check both boxes:
If you have any questions, please do not hesitate to contact us at support@calendarspots.com.