Here is more information about what steps you need to take and in what order you do them, when moving to Denmark. ISM will send you an e-mail with detailed information about the registration process.
Checklist of things to do when moving to Denmark as an EU citizen.
Checklist of things to do when moving to Denmark as a non-EU citizen.
Cross Border Commuters
Checklist of things to do when working in Denmark and living in another country.
Please see the checklist of things to do when leaving Denmark at lifeindenmark.dk.