Condition lists use case 2: Price steps – nShift

In this use case, we will illustrate how to use a condition list to look up prices. Our Pallet delivery option is priced according to the number of pallets and becomes cheaper the more pallets you ship. We will create a condition list with price steps, a custom parameter, and a rule that calculates the price based on a look-up and the number of pallets.

Learn how to:

Create and upload the condition list
Create a rule in the rule engine

Note: This tutorial assumes that a Checkout configuration has already been created.

Create and upload the condition list

Start by creating a condition list. (See the Condition lists article for more information on formatting).

Example :
```
1=500
2;3=475
4;6=450
7;10=390
11;25=275
```
(1 pallet costs 500 SEK, 2-3 pallets costs 475 SEK per pallet, 4-6 pallets costs 450 SEK per pallet, etc.)
Log into Checkout and go to Condition lists in the top menu.
Click Upload.
Select the condition list created in step 1.
Choose a member account.
Set the content type to Integer Number and name the list.
Click Import.

Example:
The condition list is created and inactive. Click the Inactive icon to activate it.

Create a rule in the rule engine

We want to create a rule that uses the condition list to look up a price and multiplies this with the number of pallets. A custom parameter is needed to make the lookup.

Open the Checkout configuration where the condition list should be applied.
Start by creating a custom parameter by going to Parameters and clicking Add parameter.
Name the custom parameter and select Integer number under Type.
Click OK to save the parameter.
Go to the Rule engine section and click Add new rule.
Enter a name for the rule.
The pallet prices only apply to Sweden so start by making a condition saying to_country is equal to Sweden.
Under Action choose Set price and choose the Pallet delivery option.
In the currency field, write:
```
toNumber(palletquantity from "PalletPrices")*palletquantity
```
- toNumber is a function
- palletquantity is the custom parameter created in step 2
- PalletPrices is the condition list
Click Continue and click Save.
Use the test tool to verify that it works as intended.