This function can help users log in to Feishu with the existing team account system. It's only suitable for team users, not for individual users. The current function is in beta testing. Team users can Contact Support to enable this feature. Once it's activated and the super administrator completes the SSO login configuration in the management background, team users can use it. For more details please read: Admin Initialization | Configure SSO login in Feishu Admin

Q: What's SSO Login？

A: SSO Login means that team users can log in to Feishu using their internal accounts. If the team super administrator has contacted Feishu to activate this function and has completed the respective configuration in Feishu Administration, team users can fill in the domain at the current page and log in to Feishu.

The domain is set by the administrator in Feishu Administration. The administrator logs in to the Administration and clicks Settings - Company Info to view the domain. Team users can ask the administrator the domain for SSO login (as shown in the example below).