Hi Capz,

I think this can be achieved by using the 'open a subform' rule, this will allow your form to open as a subform, in this way, the user cannot access the URL of the form. However, I suggest that you add another form that will act as the main form, and use it to call the form that you do not want users to access its URL. This is because of that if you call a form as a subform within itself, it will open as both a subform and a main form at the background, and that will make the URL to be accessible still, hence you will need additional form that will act as the main form.

When a form opens as a subform, it opens without showing its URL to user(s).

Best Regards,

Abraham.