The user profile you use in Sakari must be aligned with a telephone number (Sender) to see messages that use that number. Users are aligned with Senders in Sakari via Groups.
Each Group created in Sakari has a corresponding Inbox. The Inbox displays all messages that use the Sender in that Group.
Only users in a Group can view messages in the Inbox that use the Sender in the Group.
Please review the following articles: