Calculating Extended Item Price Using Price and Quantity Fields
am I able to calculate extended item price using only existing price and quantity field
am I able to calculate extended item price using only existing price and quantity field
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Yes, you can calculate an extended item price (total price) in Mixpanel by creating a custom property that multiplies the price and quantity fields. This is a perfect use case for Mixpanel's Custom Properties feature.You can create a custom property with a simple formula that multiplies your existing price and quantity fields together. Here's how you would do it: 1. Click the plus button to the right of the search bar 2. Select Event Property or User Property to open the property builder 3. Give your property a name (like "Total Price" or "Extended Price") 4. In the formula field, enter a multiplication formula using your existing properties:
```LBKSLBKSWhere `<price> ` and `<quantity> ` are your existing event properties.LBKSThis is specifically mentioned in the documentation as a common use case: "If you have an e-commerce app, you can combine 'price' and 'quantity' properties into a 'total price' property" [Custom Properties: Calculate new properties on the fly](https://docs.mixpanel.com/docs/features/custom-properties).LBKSYou can also use the `let` function for more complex calculations if needed: LBKS```LBKSlet(
spend, <price> ** <quantity> ,
spend
)LBKS```LBKSLBKSThe custom property will be local to your report by default. If you're on a Growth or Enterprise plan, you can save it globally for reuse in other reports by clicking "Save" instead of "Apply".
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Price is a sub property of the products array and it will not let me select it.
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I understand your challenge - you're trying to access a price property that's nested within a products array, and Mixpanel isn't letting you select it directly in your custom property formula.This sounds like you're working with a list of objects property structure. Mixpanel does support list of objects, but accessing nested properties within them for calculations requires specific handling.For your specific case, you have a few options: 1. Use the map and sum functions: If you need to calculate the total price across all products in the array, you can use a combination of the map and sum functions: LBKSsum(map(item, products, item.price ** item.quantity))LBKSThis would iterate through each item in your products array, multiply the price by quantity for each, and then sum the results.2. Access a specific item: If you need to access just one specific item in the array, you can use an index: LBKSproducts[0].price ** products[0].quantityLBKSThis would calculate the extended price for just the first product in the array.The Mixpanel documentation mentions that "The same syntax works with objects" when discussing how to query a list with an index Custom Properties: Calculate new properties on the fly.If you're still having trouble, you might want to check if your property structure is properly formatted as a list of objects. In Mixpanel, a list of objects property should be structured as an array of JSON objects.
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