Required When Available Assignment Criteria
With a required when available assignment criterion, the object or candidate must meet this criterion if the object or candidate has the attribute available. You can make a criterion required when available by selecting When Available from the picklist in the Required field.
For example, an assignment rule can have a required when available
assignment criterion based on service request severity, with a Compare
to Object comparison method and a criteria value of 1-Critical. In
this case, if the object assigned has a service request severity of
1-Critical, then the object qualifies for the assignment rule. An
object that has a lower service request severity value does not qualify
for the assignment rule. However, an object without a service request
severity value does qualify for the assignment rule, because the criteria
value is NULL, or not available.
Note: If an assignment criterion uses
a Compare Object to Person or a Compare Object to Organization comparison
method, and has Required set to When Available, but the attribute
value does not exist on a person or organization, this criterion fails.
This behavior is different than when the Compare to Object comparison
method is used, in which case the criterion would pass.