When searching for users in Auth0, you can use multiple endpoints to search for ID, email, or other criteria:
Search Result Terminology
We use the following terms to describe the user search results:
Eventually consistent: Search results may not reflect a recently-completed write operation. However, if you repeat your request after a short period of time, the response will return up-to-date data.
Immediately consistent: Search results will reflect the results of all successful write operations, including those that occurred shortly prior to your request.