Does pre-registering more users than MAU affect billing or limits?

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Hi everyone,

I would like to confirm how pre-registering users in Auth0 works.

For example, if my plan includes 1,000 MAU, would there be any issues or limitations if I pre-register 5,000 or even 10,000 users?
My understanding is that as long as those accounts are not active, there should be no cost impact on Auth0 billing.

Also, as long as I respect the API rate limits when creating the users, I assume there is essentially no upper limit on the number of users that can be pre-registered.

Are these assumptions correct?

Thanks in advance!

3

Hi @KouYuume !

You are correct in your assumptions.

  • Billing Impact: There is no cost impact or issue with having 10,000 user profiles on a 1,000 MAU plan. Your bill will only be determined by how many of those users actually log in within a given monthly billing cycle.
  • Technical Limits: You are also correct that there is essentially no upper limit on the total number of users you can pre-register. The main practical barrier is the Management API’s rate limit for user creation, which you must respect if you are creating them programmatically.

Have a great day!
Teodor.

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Thank you for your answer! I feel relieved.