Through the Condition Expression Builder, you can add a Condition Expression to a Message Rule Table. The Expression Builder allows you to combine multiple Condition Rules in a set of expressions (or a single expression) in order to determine whether a rule is executed.
The configured expressions may be nested (maximum nesting level of 3). For example, you can apply Condition1 OR Condition3; the system evaluates the nested OR expression before the outer AND expression.
To add a condition expression to a message rule:
In the Settings tab, click the expand () icon next to the entry in which you want to add a Condition Expression.
In the Condition Expression field, click Add/Edit.
From the drop down box, select an option: Match All Conditions,Match Any Condition, or Always Match. See below for details.
Match Drop Down List Option | Definition |
---|---|
Match Any Conditions | Expression is matched to any conditions that are considered "true"; the condition rule executes if any of the selected condition rules are the outermost nesting level are true. |
Match All Conditions | Expression is matched to any conditions that are considered "true"; the condition rule executes only if all the selected condition rules at the outermost nesting level are true. |
Always Match | Expression is unconditional; the condition rule is always matched. When Always Match is selected, Condition Rule options are not visible. |
Select the desired condition for that rule (this drop down box is generated from the Conditions configured in the Condition Rule Table). See Creating and Modifying Condition Rules.
Select subsequent condition rules (if applicable). See below for how to use the window options.
Condition Drop down options are derived from the entries in the Condition Rule Table. See Managing Condition Rule Tables. For each additional condition selected, the Match All/Any Condition drop down is displayed.