If you have large number of users to invite you can do so by uploading a .txt (each e-mail on a new line) or .csv (comma separated e-mails) file that contains user e-mails.
Step 1 – In your BlogIn account go to the Users section
Step 2 – Select the Invitations tab
Step 3 – Click on a Bulk Invite Large Number of Users link
Step 4 – Click on a button and attach a .txt or .csv file containing user e-mail addresses. Assign a access role for all users in this group (file).
Step 5 – Click on Send Invitation(s) button