I need to understand if the acceptance in derogation by the customer must always be formalized by the supplier? I recently did an audit, I saw that the NCs are kept, etc ... while the request in derogation is not ... (otherwise by email, etc.) subsequent actions taken.
Usually, our suppliers open their own internal NC, with their own form and send it to us with the request in derogation. For the less serious ones, they send us a simple email (they already know that they are simple reports).