Deleting custom forms and tabs from templates
You might want to remove forms from tabs or custom tabs from templates. Consider whether you want to change the template by deleting the form or create a new template. If you delete a form or tab, data in existing object instances is lost.
Before you begin
Important: Deleting a custom form or tab from
a template also deletes it from all existing object instances that
are created from the template. Do not delete a custom form or tab
from a published template if users already created object instances
from it. If you do, data is lost.