Use the Bulk Invite Users tool to invite a list of users to networks or programs.
To bulk-invite a list of users:
- From the main menu panel on the left, select Organization users. 
- From the Organization users page, select Bulk invite users from the Invite users drop-down list on the right.  
- On the Bulk invite users screen, choose to invite users to a network or a program. 
- Enter your list of users into the User mapping field. You can type directly, or paste in a CSV text file. (See CSV Format, below, for list formatting information.)  
- In the Permissions section, select the permissions that will be applied to all users in your bulk add users list. 
- Click Validate. - You cannot import the list of users to invite until your list has been validated. 
- The validation stops at the first error it encounters. You must correct the error then try again. 
- Continue validating until all errors are resolved. Once the validation is successful, the Import Users button appears.  
 
- Once the validation is successful, click Import Users to import the list of users and initiate the invitations.  
- On the Import results panel, click Done. 
The invitations are sent.
CSV Format
When entering a CSV list of programs/networks and users, use standard CSV formatting. For example, if you are inviting four users to two programs (“Program Green” and “Program Blue”), and the same four plus a fifth user to Program Blue, the list should be formatted as seen below. (Color highlighting added to this illustration for emphasis.)

Tip:
Click Show programs/networks without any users to pop open a list of programs or networks that currently have to users invited to them. this is a handy way to quickly get the name when you have created a new program or network and you are here to invite users to it.