Hi @hampton123 , hope I can help with this.
- Changing the sign-up and sign-in user flow to sign-in only will require updating the configuration values in your API. You can modify the user flow (policy) in your Azure AD B2C tenant to achieve this.
- You can do this through the Portal or Graph API if you want to create these yourself. And then yes, you would check "Forced password reset."
Please let me know if you have any questions and I can help you further.
If this answer helps you please mark "Accept Answer" so other users can reference it.
Thank you,
James