Does recreating a user with the same email count as multiple MAUs due to new internal IDs?

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Hi Auth0 team/community,

I’m trying to understand how Monthly Active Users (MAUs) are counted in a specific test automation scenario. In my CI pipeline, I run a test at least 30 times a month that:

  1. Creates a new user with a fixed email address (e.g., “testuser@example.com”),
  2. Authenticates the user (triggering a token issuance),
  3. Deletes the user,
  4. Repeats the process, recreating the user with the same email each time.

Since Auth0 assigns a new internal user_id (e.g., auth0|xyz) each time a user is recreated with the same email after deletion, will each of these new IDs count as a separate MAU if they authenticate? For example, with 30 runs in a month, would this result in 30 MAUs because of 30 unique user_id values, even though the email stays the same? Or does Auth0 deduplicate based on email in this case?

I’ve read that MAUs are based on unique user IDs that authenticate in a month, but I couldn’t find clarity on this create/delete/recreate cycle in the docs. Any insights or official confirmation would be greatly appreciated—especially if this could impact billing!

Thanks,
Seb

3

Hi @sebglowacki

Welcome to the Auth0 Community!

We have a great KS that answers your question here → Remove Test Users without Increase MAU but TLDR you’ll need to create a test user with Managment API to keep the user ID the same across all test accounts, otherwise Auth0 will generate a random user_id for each signup increasing the MAU.

Thanks
Dawid

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4

Nice one! Thanks Dawid.