You will need your UTM license ID at the latest when your license has expired and you want to renew it.
NoteIf you want to renew a license in our store, it helps a lot if you include the license ID in the comment field of your order. If you forget it, it is no problem. We will ask you if we can't find the license ID.
How to find your Sophos UTM license ID
Log in to your SG Firewall. In the following screenshot we have marked in red where you can find the license ID on the dashboard: