Usernames and Passwords

Unless otherwise specified, users must not share their passwords with other users. Reassign user credentials to new users only after the previous user is permanently deactivated and no longer has access to the org’s services and content. If you reuse user credentials as permitted and described here, reassign only the username. Don’t reassign the password.

Usernames must be unique across all production orgs or all sandboxes, depending on the instance type. Because Salesforce validates uniqueness for production and sandbox instance types separately, the same username can exist in both instance types. However, to ensure that users don’t confuse production and sandbox orgs, we recommend that they create a separate username for each.

The username must be in the format of an email address, for example, jane@salesforce.com. The email used in your username need not function or match the email address used for the account. You can have the same email address associated with your account across multiple orgs. For example, create unique usernames like jane@company.sandbox and jane@trialorg.company.com, for different accounts that are associated with the same email address. Keep in mind that Salesforce Customer Support can’t change usernames or deactivate users from an org. If you get a Duplicate Username error, check if the username is already in use in your production, trial, or Sandbox orgs. Deactivate or change the username for the user record, then create your account with your desired username in your production org. If you’re unable to change or deactivate a username, contact your Salesforce admin for help. If you’re unable to locate the org where the username is already in use, try a different username to create your account.