You will be asked to enter your ABN when you join Colladium and create an organisation.

You can always add an ABN 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. Click on ADD NEW +  next to ABNs. Enter your ABN here and click on ADD button.
   

Need to delete your ABN?

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