I can no longer see External User license type under Access Levels in Setup.
You must have the following access to perform the steps in this article:
|Adobe Workfront plan||Any|
|Adobe Workfront license||Plan|
|Access level configurations||
You must be a Workfront administrator. For more information, see Grant a user full administrative access.
NOTE: If you still don't have access, ask your Workfront administrator if they set additional restrictions in your access level. For information on how a Workfront administrator can modify your access level, see Create or modify custom access levels.
Go to Setup > System > Preferences.
In the Security section, ensure the option Collaborate with people without Workfront accounts by using their email address is enabled.
If this option is not enabled, the external user does not appear in Access Level Setup.