There several ways to add contacts to your SMS Central Account.
Manually add contacts to ALL Contacts
From Contacts, click on Add a Contact.
The pro of this approach is that it's easy and straightforward.
The downside is that if you don't assign the contact to a particular/ multiple groups, then your database management will be a bit more complicated (or at least not 100% optimised).
Manually add contacts to specific groups
Before manually adding contacts we suggest that you create a group for that contact to be added into first.
Once inside the group, click on Add a Contact.
Adding a contact to a specific group will also create him/her in All Contacts' group.
Upload/ Import contacts
If you have all your contacts in a .csv file, you can simply upload them all with one click.
For more info on what's required, we recommend this step by step article.