JUMP TOIntroductionUsing the APIBillsby APIList customersgetCreate without subscriptionpostCustomer detailsgetUpdate customerputCustomer subscriptionsgetCustomer feature tagsgetCustomer payment logsgetRequest to update payment detailsgetUpdate payment card tokenputCreate a one-time chargepostClear customer data (GDPR)putDelete a customerdeleteSubscriptionsList subscriptionsgetSubscription detailsgetShipping addressgetFeature tags by SubscriptiongetFeature tags by plan and custom tagsgetEvent logsgetCreate new customer and subscriptionpostAdd subscription to existing customerpostAdd feature tagspostChange planputUpdate subscription shipping addressputDelete feature tagdeleteCancel a subscriptiondeleteUpdate next renewal dateputInvoices and Credit notesIndividual invoicesgetCompany invoicesgetCustomer invoicesgetRefund an invoicepostReattempt invoice paymentputInvoice paid offlineputInvoice written offputCompany credit notesgetCustomer credit notesgetReattempt credit note paymentputProducts, plans and cyclesProduct detailsgetList productsgetList plansgetCreate a productpostCreate a planpostCreate a cyclepostUpdate a productputUpdate a plan and cycleputUpdate plan orderputAdd ons and AllowancesCounter valuegetUpdate counterpostGet a list of available add-onsgetGet add-on detailsgetGet a list of available allowancesgetGet allowance detailsgetGet add-ons for specific subscriptiongetGet allowances for specific subscriptiongetCustom fieldsCustom fieldsgetCreate custom fieldpostUpdate custom fieldputCustom fields responsegetUpdate customer response to custom fieldsputWebhooksCustomer createdCustomer updatedCustomer deletedSubscription createdSubscription updatedInvoice createdInvoice updatedCredit note createdCredit note updatedUpdate a plan and cycleput https://public.billsby.com/api/v1/rest/core/{companyDomain}/products/{productId}/plans/{planId}Update a plan and cycle for your companyReturned variables