Token scope - Read & write subscription contracts

Rate limit - Global pool (i.e. 10 requests per second per domain)

Body parameters explained

• variantShopifyId - Shopify id of the variant with which the existing line is being swapped.
• quantity - Quantity of the new variant which is being swapped with the existing lineItem.
• pricingType - Define the pricingType for the new line added.
  • OLD - The selling plan discount associated with the previous line would be applied to the new swapped line.
  • NEW - The selling plan discount associated with the new line would be applied to the new swapped line.
  • CUSTOM - Apply custom discount to the new swapped line.
• customDiscount - Apply a custom discount to the new swapped line. Select the pricingType as CUSTOM to apply a custom discount.
• sellingPlanGroupId - The sellingPlanGroupId refers to the selling plan group ID associated with the variant that will be swapped.
  • If the sellingPlanGroupId is not provided, the system will assign the plan based on the priority of the available selling plan groups.
  • If the provided sellingPlanGroupId is invalid or does not exist, an error will be thrown.