Log in to the Customer Control Panel
Within the Workspace 365 subscription go to the Workspace 365 tab
Within the Workspace 365 tab go to the subtab Workspace365 Business App credits
Click the Activate button
Enter the amount of Business App Credits you need. You will need a license for each users on each Business apps (2 Business apps available for 5 users equals 10 licenses).You will be billed for the amount of licenses entered here. You can edit this amount at any time, as long as you do not try to downgrade below the amount in use in Workspace365.