To import your data into Base:
You will then see a screen where you'll be required to provide your Highrise account credentials.
Enter your Highrise account name and account token. You can locate your token under
Accounts & Settings → My Info → (API Token).
By default, Base will import all data you have access to, including any private contacts. You will be also given an option to import users from your Highrise account. If their names and emails match people who already are in your Base account, their Highrise data will be assigned to them when you check the box next to their name.
If we can't match some Highrise users to users in your Base account (either because they haven't been invited, or because they use a different email address), you will have the option of creating new Base users.
Please note that this can require purchasing additional seats for your account.