Single user login

Single user login (SUL) is the unique credential to login to the Wikimedia platforms (including organisational websites like this), based on username + password.

Some platforms use OAuth (proxy login).

Users should have only one single account.

Some technical platforms have a separate login, for platform specific reasons.

Functionality

• Rename username
• Merge accounts
• Block accounts
• Password reset
• Protected login (extended authentication)

Exceptions

• Bots have a separate account (often with a Bot suffix, and logically linked to the main account)
• Some technical developer platforms
  • Gerrit (version management)
  • Wikitech (documentation)