Recommendations are a little bit different than the other actions. A recommendation prompts the user to enter a value in a field. You would use the Recommendation action to guide users when they fill out a form. It displays a suggestion bubble with text next to the field with an Apply button.
The following screenshot shows a recommendation as it appears to the user:

The following screenshot shows how to set up the recommendation:

Along with the recommendation is an action that will be performed if the user accepts the recommendation. In the following screenshot, a set value is used to set the VIP field to Yes:

Now that you are aware of all the actions, we can combine these actions together to form a business rule.