You may need to provide a text explanation for why you are accessing a given application. This is because of policies your security team has configured in AppGate ZTNA.
When a reason is required, the User Interaction window opens. If you do not want to provide a reason now, close the window. It reopens when needed.
When the Provide Reason window appears:

Enter your reason for accessing this resource in the Reason field. The text is free-form with no character limit. The message set by your administrator may provide guidance on what to include. For example, a customer reference number or ticket number.
Click Submit to continue.
You can now access the application.