To do this involves the following steps:
1) Disconnect the iO integration in the Suitability application and sign out of ATEB Suitability.
To do this, go into the 'Your Profile' page in the suitability application. At the bottom of the page, under the 'Active Intergrations' the Intelligent Office logo should be displayed. Click on the Red 'Disable' button next to the iO logo.
2) Log in to Intelligent Office, and click on the 'Create a Suitability Report'. This will lead to ATEB Suitability application where the user will be asked whether they are an existing user.