There is no problem with directly registering new users from Teachme Biz while user Provisioning is configured.
Notes
- If the E-Mail Address of a user directly registered on Teachme Biz is also registered in Entra ID (formerly Azure AD), they will be considered the same user.
Therefore, during automatic Provisioning, the Teachme Biz account will be overwritten with the information from Entra ID (formerly Azure AD). - Even if you directly register a new user on Teachme Biz, the user will not be newly registered in Entra ID (formerly Azure AD).
Related:
Configure user Provisioning with Entra ID (formerly Azure AD) (Web Browser)
https://teachme.jp/8/manuals/14985766/
Invite and add users (Members and guests) to a Group (Web Browser)
https://teachme.jp/8/manuals/4929462/
Add multiple users at once using CSV file (Web Browser)
https://teachme.jp/8/manuals/4965270/