Depending on the permissions that the administrator of the group has set, you might need to be an administrator of the group to perform this task.

1. On the Home screen or in the Instant Messaging folder, click the BlackBerry Messenger icon.
2. On the contact list screen, in the BlackBerry Groups category, click a group.
3. Click Members.
4. Click Invite a new member.
5. Click Scan a person's barcode.
6. Click Continue.
7. Hold your device so that all four corners of the barcode appear on your device screen. Continue to hold the device until you hear the success beep.