Message 67

Severity:	Serious (value = 2)
Default Action:	Error (value = 0)
Description:	Constraint <name> cannot be conditional unless defining Constraint RHS of period type = "interval".
Detail:

Message 67 occurs in the following circumstances:

• You define a Constraint object using one of the values RHS Day, RHS Week, RHS Month, RHS Year, RHS Custom, and
• make the Constraint 'conditional' by including a Variable object in the Constraint Conditions collection.

Since Condition objects are evaluated every interval, which is reported as Hours Active, conditional constraints can only be defined as interval-type i.e. by defining the RHS property.