In the majority of cases, Klaviyo works best as a 1:1 sync with your ecommerce store. Because of this, you may have multiple stores and thus, multiple Klaviyo accounts. Now, you can access multiple Klaviyo accounts using the same email address, making it easy keep track of each account without having to log out and log back in using a separate address.
How it Works
Klaviyo supports the ability to use the same email address to log into multiple accounts. This means that once your primary email address is added as a new user to an account, you will then have the ability to toggle between separate accounts. Switch to a different account by clicking the Account tab in the upper right. Then, select the account you would like from the dropdown.
Additionally, Klaviyo supports varying permissions for the same email address within separate accounts. For example, the same person could have Admin rights in one account, but simply be a Campaign Coordinator in another.
If you currently use separate email addresses or aliases (i.e. email@example.com) to log into separate accounts, you will first need to make sure you're added as a new user with your primary address (i.e. firstname.lastname@example.org) to utilize this feature. Once added to a new account, you will receive an email with the subject line "Additional Klaviyo account access granted" notifying you that you now have access to the new account.
Only account Owners and Admins are able to add new users to an account, as well as remove them when needed. Additionally, it is not possible to link separate login email addresses, so make sure that the email address you use is consistent throughout accounts.