Rule Conditions and Actions 
When defining rules, the conditions and actions for which rules are effective are listed in a rule decision table called Rule Conditions and Actions. This table contains the core content of the business rules and logic. Each row in the decision table has one single condition or action or a parameter for the action.
For more information about the fields and the business logic in the Rule Conditions and Actions table, see Field Help for Rule Conditions and Actions.
From rule definition under Rule Conditions and Actions, choose Add.
A new row is inserted in the table.
Select a value for Logic from the list.
Select a value for Attribute from the list.
Note
The attributes that are available for a rule depend on the logic you choose. In some cases, no attributes are displayed.
Select a value for Operator from the list.
Enter a Value for the rule.
Repeat the procedure to complete the logic for the rule definition.
Note
An if condition can only be followed by and, or, or then. For every if condition, an endif must complete the if block for business logic.
If necessary, choose Reorder List to reorder the rows in the table.
Save your entries.