Local List Variables in Expression Sets

Local list variables store variable or constant values from context definition tags. You can create local nodes and attributes to an existing hierarchy or create a custom local hierarchy based on your specific use case in the expression set. Use the following guidelines while creating and using local list variables:

• For a local list node variable, the parent node can be a context definition node or another local list node variable.

• For a local list attribute variable, the parent node must be a local list node variable. You must create a local list node variable before you create a local list attribute variable.

• Once a local list variable is saved, it cannot be edited. You can only delete a local list variable.

• Local list variable names must be unique.

• Local list variables must be used in the Right-Hand Side (RHS) of an expression step before they can be used on the Left-Hand Side (LHS).

• Local list variables cannot accept input from JSON, cannot be hydrated directly in a context instance, and cannot return values to the output JSON even if marked "Include in Output".

• Local list variables inherit decimal precision settings from the left panel settings of the expression set; they do not support individual decimal scales.

• Local list variables are supported only in steps where context tags are allowed, such as Calculation steps. They are not supported in Condition steps.

• You can use a local list variable only within the expression set version, and they can’t be accessed by subexpression sets or any external processes. The values stored by a local list variable are not passed back to the context instance. You can't use local list variables as an output of the expression set.

• During simulation, values passed for local list variables are ignored; only default or null values from resource initialization are used.