Dear All,
I have a requirement to add field i.e. "Mobile No." on Powerapps Portals Sign In page.
Thank You !!

Dear All,
I have a requirement to add field i.e. "Mobile No." on Powerapps Portals Sign In page.
Thank You !!
hope this page will help you.
docs.microsoft.com/.../entity-lists
If you have any questions about Power apps portal. please post on Power Apps Community - Power Platform Community (microsoft.com) because it is Dynamics CRM forum page here.
Also I recommend you to create a support ticket for further investigation.