Update dictionary in if() function

Hello dilipg9160 

Where are you trying to perform this loop, is it in a saveInto parameter? Could you please share the complete code snippet. Also please do as below to insert your code.

Hello,

I believe you're attempting to use the a!save() function within an expression rule.The a!save() function requires saveInto parameters that are available in the interface components. Additionally, updating variable values directly in an expression rule is not possible. Such modifications can only be made within an interface, not within an expression rule.

https://docs.appian.com/suite/help/23.4/fnc_evaluation_save.html

Use the a!update parameter to update a field in the dictionary. You cannot use a!save in an expression rule. 

Thank you for explanation 

Thank you for explanation 

To add some details here. A "reaction tree" is a data structure in the internal Appian implementation that defines the data and actions taking place as a user interacts with a UI component and the "saveInto" of that component is triggered.

https://docs.appian.com/suite/help/24.1/SAIL_Performance.html