When form - Completing the Advanced tab

For complex conditions, use this tab to enter conditions and a logic statement that combines them.

Note: As a best practice, use the Conditions tab to configure and update the rule. Your configuration populates the conditions array and the Logic String field on this tab. If you add, change, or delete rows, or edit the Logic String field, you can no longer use the Conditions tab. Updating values in existing conditions or using the Options area does not disable that tab.
Field Description
Conditions In each row, enter a condition and label that you want to include in the when evaluation.
label Enter a unique number or text value in the row header that serves as an identifier for this row. These are used in the Logic String elements. Do not choose and, or, or not as labels. You can enter // as a label to mark this row as a comment, which is a condition that is not evaluated.

By default, the system uses A, B, C, and so on.

condition Use the fields to enter property references, literal constants, or calls and functions. By default, the first condition compares two values.
Note: For some comparisons, a Select values option is available. Depending on the comparison, the select control will allow you to select one or many values for the target property. The available values are defined values for the comparison property into case instances.

Optional. Select the down arrow at the end of the row for a list of standard conditions (derived from function alias rules).

If you select [expression evaluates to true], use the Expression Builder for guided assistance; click the Gear icon to open it. See Using the Expression Builder.

Logic String Enter the Boolean logic operations performed on the Conditions array that compute to a True or False result at run time.

If you created the conditions on the Conditions tab, the system populates this field by using the AND and OR operators, in addition to the group hierarchies that are defined on the condition tree.

You can use and, or, and not in the statement. You can use parentheses to control the order of evaluation.

For example, if the table contains four labels A, B, C, and D, you can enter:

(A and B) or (C and not D)

When you save the rule, if the form contains only one test row, the system inserts the label for that test row here. If you have more than one row, the system defaults to requiring all rows to be true. If that is not the outcome that you want, revise the statement and save it again.

Note: If this rule is delegated, this area is not displayed to users without the appropriate access roles and privileges.
Allowed Functions Select a function alias that restricts the available conditions (on this and on the Conditions tab) to the one in this field. The alias is the only one in the list of standard conditions. When you add a row or node, it defaults to this condition.

To add aliases, click the Add a row icon. The top entry is the default when you add a new row in the array.

Other expressions that are defined on the tree or array are not affected and remain intact. To make all standard conditions available, clear all entries in this option.

Skip backward chaining This field has no effect in other situations.
Display property labels Select to present the Description ( pyLabel- ) of properties when reviewing an expression on this tab or on the Conditions tab. Two or more properties can have the same Description text.