# Partner Email Sync Portal Login

When the email of a contact that has a **portal user** is changed and saved:

- the user login is updated with the new (normalized) email, and
- a password reset email is sent to the new address.

A note is posted in the contact chatter with the result.

## Behaviour details

- Only portal users are affected; internal users are never modified.
- Empty or invalid emails are ignored (login is kept).
- Changes that only differ in letter case do not trigger anything.
- If another user already uses the new email as login, the change is
  blocked with an error message.
- If the reset email cannot be sent, the login is still updated and the
  error is recorded in the chatter.
- From the portal access wizard ("Grant portal access" / "Invite again")
  the login is synced but no reset email is sent, since the wizard sends
  its own invitation.
- Use the context key `skip_portal_login_sync` to disable the behaviour
  (e.g. in imports).
- Changing the login closes the user's open sessions.