The Calculate action node allows you to perform mathematical operations on flow variables.

You can use two types of mathematical operations:

  • Comparison: variables are compared against each other as per the expression - if it matches, a 'Yes' result is returned, if it doesn't match, a 'No' result is returned.

  • Calculation: the result of the expression is calculated and stored under a session variable [[actionName:result]] - in other words, if you want to refer to the result of this calculation, that is the variable name you should use. If successfully calculated, a 'Yes' result is returned, else a 'No' result is returned.

Setup of a Calculate node

The below table describes some examples of mathematical expressions you can define in Chat Flow. You can create expressions as simple or complex as required.



+ - / *

Standard math calculations (add, subtract, divide, multiply)

a+b, a-b, a/b, a*b

= > < >= <=

Standard comparison operators (equals to, greater than, less than, greater than or equals to, less than or equals to)

a=b, a>b, a<b, a>=b, a<=b


Not equal to comparison operator