Under this section, you can imagine that it is equal to contacts in a phone. Not every customer has a corresponding chatroom.
Under broadcast section, the targeted customers can be filtered out by labels also.
Add a single customer
Provide the contact information
Add Customers by batch
There are two Excel templates for importing customers by batch.
The steps generally are
Download the Excel template
Update / Add the customer on the Excel (if empty user ID, system will create a new customer. )
Upload the new version of Excel.
Excel Templates Functions