In our mobile app, users can add contacts to existing lists.

Here's a step-by-step guide:

1. In the menu bar, select the Contacts icon.

2. In the Contacts page, select the contact you want to add to a list.

3. In the Contact Profile page, select the Add to List icon.

4.Select the list you want to add the contact to. You should get a message that the contact was successfully added to the list.