JUMP TOHeadless Checkout APIValidate cartCheck cart has subscriptiongetHeadless Consumer Portal APIConsumer portal configGet consumer portal configgetSubscriptionsGet subscriptions listgetGet subscription amountgetGet a subscription product imagegetGet shipping and billing details of a subscriptiongetGet subscription historygetGet available billing frequenciesgetGet subscription product optionsgetSubscription actionsPause subscriptionpostResume subscriptionpostStop subscriptionpostSkip subscriptionpostBill nowpostChange shipping addressGet customer shipping addressesgetUpdate shipping addressputAdd a Customer AddresspostChange payment methodGet Payment methodsgetUpdate payment method on subscriptionputManage billingUpdate billing modelputUpdate next billing dateputUpdate product quantityputChange productGet change product page detailsgetGet product pricepostChange subscription productpostPowered by Check cart has subscriptionget https://app-bigcommerce.sticky.io/api/v1/custom/checkout/is-subscription-cartCheck cart has any subscription item