[keycloak-user] use custom FormAction implementation on "edit account" page

hello, I've implemented an "extended profile validation" FormAction provider which validates (required fields, field-format) some additional user attributes (contained in our custom theme). But now there is a major problem, i don't know how i can use this provider for the "edit account" page. Currently the user needs to enter some additional fields on the registration page, but after this, he can freely choose to edit/delete the content on the "edit account" page. How can i prevent this? regards, msc