You can add your NZBN in your organisation's settings:

1. Go to your organisation by clicking on the building icon, or your organisation's name in the top right of the menu
2. In the navigation on the left, click organisation settings > general settings > identifiers.
3. Enter your NZBN here and click on ADD button.
   

Need to delete your NZBN?

1. Go back to the identifiers page
2. Hover over your NZBN and click the trash can.