I have faced an  problem regarding the portal user sign up..

• internal
• Portal
• Public

From the above option, i have selected the portal for default access rights on free signup for a user in the website to see their documents. But When they signup the user is automatically created as an internal user and  redirected  to  the  internal  application .  But  they  should  see  only  the  website  menu  and  their  documents.  Why this is happen? If there is any solution , It will be a great help. I am using odoo14.

Thanks.