If you've forgotten your Salesforce username, your System Administrator can recover your login credentials on your behalf. This is the recommended path for recovering a forgotten username. For example, if a user can't log in because they don't remember which email format they used as their username, their System Administrator can look it up directly in the org's user management settings.
Note: Salesforce Support cannot provide or disclose your username under any circumstances.
All Editions
Contact your System Administrator
Search your email inbox for any of the following emails from Salesforce — these will include your username:
Your System Administrator can recover your login credentials if you have forgotten your username. Salesforce Support cannot provide or disclose your username.
000384456

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