There are 4 3 reasons why your appointments may turn ORANGE.
...
To check if there is missing billing information, open the appointment then click on Warnings
Reason 2:
Scheduled hours for the client "Exceeds the Authorized Hours"
Your system administrator may have set up your Rethink account to allow users to schedule beyond the Authorized Hours.
To check: Open the appointment click "Warnings".
Reason 3: (Most likely to occur)
Appointments that are part of a Repeating Series that extend beyond the Authorization.
TIP: We recommend you avoid scheduling beyond the authorization end date when possible, since this will result in more administrative maintenance to find
appointments and then reconnect to the new authorization once it has been entered.
Our system will tag any appointments that are part of Series but extend beyond the Authorization you selected with "No Authorization".
These appointments can be connected to the new Authorization after it has been entered.
Reason 43: Highly Requested Feature to add a "placeholder" authorization is now available
...