Create a Local List Variable in an Expression Set Version

Store the definition’s context tag values in the expression set version using local list variables. In an expression set, local list variables are hierarchical resources (you can create parent and child hierarchies with them), while variables and constants are flat resources.

Required Editions

Available in: Lightning Experience

Available in: Enterprise, Unlimited, and Developer Editions for clouds that have Business Rules Engine enabled

User Permissions Needed
To create an expression set that uses a context definition:	Rule Engine
To use the definition’s tags as local list variables in the expression set’s version steps:	Rule Engine

From the App Launcher (), find and select Business Rules Engine.
Click the app navigation menu, and then select Expression Sets.
Select an expression set.
From the Expression Set Versions area, select a version.
The version opens in Expression Set Builder.
To create local list variables,
1. Click .
2. Click Add Resource.
3. In Resource Type, select Local List Variable.
4. In Level, select Node.
  Tip To set the node at the root level, leave the Parent Node field empty.
5. In Parent Node, select the node in the context definition.
6. Enter the Resource Name and Data Type.
7. Save your changes.
8. Continue to create the nodes and attributes you need to use in the expression set version.
  The hierarchy of the local list variables appears in the list of tags for the context definition.