You are allowed to invite as many authorized users as you want. Each user that completes the setup will be added to your user count.
For cloud monthly plans
With cloud monthly plans, you can pay as you go. The cost of the newly added users will be reflected on your next invoice. The cost of a user is calculated on a pro-rata basis, for example if you add a user in the middle of the month you will only pay for 50% of this cost for the given month. The same logic will apply if you remove users from your instance, the associated cost will be deducted from your next invoice.
For cloud annual plans
Cloud annual plans are provisioned in advance for a predefined user count. For example, if you provision your cloud annual plan for 100 users, you will be billed in advance for 100 users for a year and be free to add users at your own pace until you reach the 100 users limit. If you exceed the provisioned limit of 100 users by adding 1 additional user, resulting in a user count of 101, then you will be invoiced immediately for the next available tiers (in our example, 110 users).
Note that reducing your user count will not automatically scale down your user count provisioning. If at any point you would like to scale down the quantity of users you are paying for, please contact our sales team.