You ensure promoted records are always produced by creating a zone in Developer Studio to associate with a number of dynamic business rules.

A zone is a logical collection of rules that allows you to have multiple rules available, in case a single rule does not produce a result. The rules in a zone ensure that the screen space dedicated to displaying promoted records is always populated. A zone has a rule limit that dictates how many rules may successfully return rule results.

For example, if three rules are assigned to a certain zone but the “Rule limit” is set to one, only the first rule to successfully provide rule results is evaluated. Any remaining rules in the zone are ignored.