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Calculates a value from two fields in your data and writes the result back into it. You pick an operation, such as adding numbers together or joining text, point it at two values, and choose where to store the outcome. Use this for things like adding shipping to a price, combining quantities, or building one text value from two others.

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Fields

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Sample data

In this example the Math: Add operation adds the price and the shipping cost together and stores the result in a new total field. The two source fields are left untouched.
FieldValue
OperatorMath: Add (addition)
Leftprice
Rightshipping
Destinationtotal
Input: 
{
    "price": 80,
    "shipping": 5.5
}
Output: 
{
    "price": 80,
    "shipping": 5.5,
    "total": 85.5
}