External customer portal to view own related records


I have a customers table with a subtable showing that customers orders.

How can I give access to that customer as an external user to view only their records - I obviously don’t want customers to see other customer details. Is there a way that records can be dynamically filtered based upon which user has logged in somehow?


If you have their email addresses, you can set the guest user attribute. Then, they’ll receive a notification mail with a link for them to check the order once the order saved.