How to make all views display only based on user status

Hi all,

I have a requirement to make all views (in a complaint) transaction display only the moment the user / system status is set to Completed.

Using BADI CRM_ORDER_FIELDCHECK I can control which fields to make display only but this BADI only does the work partially because the buttons to edit and subsequently insert new items still work.

I basically want to ensure that nothing else can get changed the moment the document status is set to 'Completed'.

Thanks,

John