You can make sure that null values or preconfigured default values in decision tables
are preserved during calculations in expression sets based on your business
requirements.
Required Editions
Available in: Lightning Experience
Available in: Enterprise, Unlimited, and Developer Editions
for clouds that have Business Rules Engine enabled
When you create an expression set, you can initialize resources with null or default
values.
To initialize the expression set version resources with null values, turn off the
Initialize resources to default values option when you create an expression set. To
customize how null values are handled, use the IsNull and IsNotNull operators and
functions in the condition, list filter, and calculation steps.
To initialize the expression set version resources with default values, turn on the
Initialize resources to default values option.
If you use the lookup table element as a step in an expression set version, the input and
output variables from the table are imported as local resources of the expression set
version.
Initialize Resources to Default Values
Decision Table Output
Default Value
Expression Set Output
Comment
On
Null
100 (value set by user)
100
The default value overwrites the Null value from the decision table if
Initialize resources to default values is on.
On
Null
none
0 (internal default value)
NA
Off
Null
-
Null
The Null value from the decision table is preserved if Initialize
resources to default values is off.
On/Off
10 (Any non-null value)
-
10
The non-null value from the decision table is set as the expression set
output.
Note When the decision table doesn’t have any matching row, the variables in the expression set
retain their previous values. The step is marked Executed in the simulation page.
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