You can set-up Default fallback-URL for the cases that any of the Stream conditions (caps or filters) are not met. The traffic on a particular Offer will be redirected to that fallback-URL.
This option is available in the Tools tab:
You can place any link on which you want to redirect the traffic from your Campaign as a Default fallback-URL.
Also, you can use Sub ID parameters to send some important data if necessary:
These parameters are to be used the same way it is done on a Campaign level.
We suggest you create another Offer and add its link as a Default fallback-URL, it will help you not to lose your traffic.