This topic explains how to replace a product rate plan by creating an order and configuring dynamic pricing.

1. Determine the values of the following variables and configure the dynamic pricing enabled charge in the product catalog accordingly:

   Variable	Description
   $AccountNum	The number of the account that will own the order. For example, A00000001 .
   $ProductRPId	The ID of the product rate plan to add to the subscription. For example, 8a90876c84ae5ef70184bef2c94c7b2c. .
   $ProductRPChargeId	The ID of the product rate plan charge to use when adding the product rate plan. For example, 41137e9965e2445fbb57dae2daab7580. .
   $subscriptionNumber	The number of the subscription that will own the rate plans. For example, A-S0000001.
   $subscriptionRatePlanID	The ID of the subscription rate plan. For example, 8a90876c84ae5ef70184c2080c307343.
   $Today	Today's date. For example,2025-08-01.

2. Refer to the example payload to create a new order. In this example, the user sets the value of pricing attributes: Site_Size and EffectiveDate directly in pricingAttributes. For pricing attribute Subscription_RatePlan_Class, that is mapped to the custom field RateClass__c, its value is set in customFields and automatically used by Zuora during list price lookup.
   Note:

   Assuming the subscription's renewal term length = 12 months.

   Request

   POST /v1/orders/

   Request Body

   { "existingAccountNumber": "$AccountNum", "orderDate": "$Today", "subscriptions": [ { "subscriptionNumber": "$subscriptionNumber", "orderActions":[ { "type":"ChangePlan", "triggerDates": [ { "name": "ContractEffective", "triggerDate": "$Today" }, { "name": "ServiceActivation", "triggerDate": "$Today" }, { "name": "CustomerAcceptance", "triggerDate": "$Today" } ], "changePlan": { "ratePlanId": "$subscriptionRatePlanId", "newProductRatePlan": { "productRatePlanId":"$productRatePlanId", "customFields": { "Channel__c": "Reseller", "RateClass__c": "Low" }, "chargeOverrides": [ { "productRatePlanChargeId": "$productRatePlanChargeId", "pricingAttributes": { "Site_Size": 20 } } ] } } } ] } ] }