Have you upgraded your mobile device recently?

As new Apple and Android mobile devices enter the market, you might choose to upgrade your current device to the latest model. To maintain security, you’ll need to set up your myGovID again, then re-verify your identity whenever you get a new mobile device, change your device or use your myGovID on multiple devices. Make sure you use your latest myGovID email address.

If your myGovID is already linked to a business in Relationship Authorisation Manager, the link will not be affected.

Check out how to set up your myGovID again. If you’ve transferred your app to another device, select Reset app within your myGovID app’s Settings before you start. Once set up, you can access Online services for business.

You can also view ATO myGovID setup history in your app to help manage your devices.

Source: ATO