Webhook response payload example (expansion enabled)

When a subscription.group.created event is triggered, the webhook sends the following JSON payload:

{
  "cotermGroupId": "aB1c2deFGhIjKL3mn-opqR",
  "cotermGroupDisplayName": "Tech Services Monthly Plan",
  "cotermGroupPeriodStartDate": 1754044800000,
  "cotermGroupPeriodEndDate": 1756646400000,
  "cotermGroupPrimarySubscription": "sub-001",
  "cotermGroupStatus": "EXECUTED",
  "cotermGroupOrderId": "aBCDE12fGH3iJkL4mNOpq",
  "cotermGroupOrderReference": "ABC123456-7891-01112",
  "cotermNextChargeDate": 1756646400000,
  "cotermNextChargeTotal": 199.95,
  "cotermNextChargeTotalDisplay": "$199.95",
  "cotermGroupSize": 2,
  "currency": "USD",
  "changed": 1753526400000,
  "changedValue": 1753526400000,
  "changedInSeconds": 1753526400,
  "changedDisplay": "07/25/25",
  "changedDisplayISO8601": "2025-07-25",
  "nextChargeDate": 1756646400000,
  "nextChargeDateValue": 1756646400000,
  "nextChargeDateInSeconds": 1756646400,
  "nextChargeDateDisplay": "08/31/25",
  "nextChargeDateDisplayISO8601": "2025-08-31",
  "paymentOverdue": {
    "intervalUnit": "week",
    "intervalLength": 1,
    "total": 2,
    "sent": 0
  },
  "cancellationSetting": {
    "cancellation": "AFTER_LAST_NOTIFICATION",
    "intervalUnit": "week",
    "intervalLength": 1
  },
  "account": {
    "id": "abCdE1FGH2Hij3KLMnOpqR",
    "account": "abCdE1FGH2Hij3KLMnOpqR",
    "contact": {
      "first": "Jane",
      "last": "Doe",
      "email": "jane.doe@company.com",
      "company": "Company Inc.",
      "phone": "8001234567",
      "subscribed": true
    },
    "address": {
      "address line 1": "123 Business Rd",
      "address line 2": "Floor 4",
      "city": "Metropolis",
      "country": "US",
      "postal code": "12345",
      "region": "US-NY",
      "region custom": null,
      "company": "Company Inc."
    },
    "language": "en",
    "country": "US",
    "lookup": {
      "global": "lookup-001"
    },
    "url": "https://company.onfastspring.com/account"
  },
  "subscriptions": [
    {
      "id": "1abc2DE_FGhIjKLm3NoPQR",
      "active": true,
      "state": "active",
      "isSubscriptionEligibleForPauseByBuyer": false,
      "isPauseScheduled": false,
      "live": false,
      "currency": "USD",
      "product": "cloud-storage",
      "sku": "SKU-CS-101",
      "display": "Cloud Storage Service",
      "quantity": 1,
      "adhoc": false,
      "autoRenew": true,
      "price": 49.99,
      "discount": 0,
      "subtotal": 49.99,
      "end": null,
      "canceledDate": null,
      "deactivationDate": null,
      "sequence": 1,
      "periods": null,
      "remainingPeriods": null,
      "begin": 1754044800000,
      "intervalUnit": "month",
      "intervalUnitAbbreviation": "mo",
      "intervalLength": 1,
      "intervalLengthGtOne": false,
      "nextChargeCurrency": "USD",
      "nextChargeDate": 1756646400000,
      "nextChargePreTax": 44.99,
      "nextChargeTotal": 49.99,
      "taxExemptionData": null,
      "addons": [
        {
          "product": "data-backup",
          "sku": "SKU-DB-201",
          "display": "Data Backup",
          "quantity": 1,
          "price": 9.99,
          "discount": 0,
          "subtotal": 9.99,
          "subtotalDisplay": "$9.99",
          "discounts": []
        }
      ],
      "discounts": null,
      "fulfillments": {},
      "instructions": [
        {
          "product": "cloud-storage",
          "type": "regular",
          "periodStartDate": 1754044800000,
          "periodEndDate": null,
          "intervalUnit": "month",
          "intervalLength": 1,
          "discountDurationUnit": null,
          "discountDurationLength": null,
          "discountPercent": 0,
          "discountTotal": 0,
          "unitDiscount": 0,
          "price": 49.99,
          "priceTotal": 49.99,
          "unitPrice": 49.99,
          "total": 49.99,
          "totalWithTaxes": 49.99,
          "totalWithTaxesDisplay": "$49.99",
          "isNotTrial": true
        }
      ]
    },
    {
      "id": "2abc2DE_FGhIjKLm3NoPQR",
      "active": true,
      "state": "active",
      "isSubscriptionEligibleForPauseByBuyer": false,
      "isPauseScheduled": false,
      "live": false,
      "currency": "USD",
      "product": "data-analytics",
      "sku": "SKU-DA-102",
      "display": "Data Analytics Service",
      "quantity": 1,
      "adhoc": false,
      "autoRenew": true,
      "price": 79.99,
      "discount": 0,
      "subtotal": 79.99,
      "end": null,
      "canceledDate": null,
      "deactivationDate": null,
      "sequence": 1,
      "periods": null,
      "remainingPeriods": null,
      "begin": 1754044800000,
      "intervalUnit": "month",
      "intervalUnitAbbreviation": "mo",
      "intervalLength": 1,
      "intervalLengthGtOne": false,
      "nextChargeCurrency": "USD",
      "nextChargeDate": 1756646400000,
      "nextChargePreTax": 74.99,
      "nextChargeTotal": 79.99,
      "taxExemptionData": null,
      "addons": [
        {
          "product": "extended-support",
          "sku": "SKU-ES-202",
          "display": "Extended Support",
          "quantity": 1,
          "price": 14.99,
          "discount": 0,
          "subtotal": 14.99,
          "subtotalDisplay": "$14.99",
          "discounts": []
        }
      ],
      "discounts": null,
      "fulfillments": {},
      "instructions": [
        {
          "product": "data-analytics",
          "type": "regular",
          "periodStartDate": 1754044800000,
          "periodEndDate": null,
          "intervalUnit": "month",
          "intervalLength": 1,
          "discountDurationUnit": null,
          "discountDurationLength": null,
          "discountPercent": 0,
          "discountTotal": 0,
          "unitDiscount": 0,
          "price": 79.99,
          "priceTotal": 79.99,
          "unitPrice": 79.99,
          "total": 79.99,
          "totalWithTaxes": 79.99,
          "totalWithTaxesDisplay": "$79.99",
          "isNotTrial": true
        }
      ]
    }
  ]
}

Webhook response payload properties

The webhook response properties table outlines each property in the subscription.group.created event JSON payload, specifying their name, data type, and description.

Name	Type	Description
Co-term Group Information
cotermGroupId	string	Unique identifier for the co-term group.
cotermGroupDisplayName	string	Display name of the co-term group. This property is optional when creating a co-term group.
cotermGroupPeriodStartDate	integer	Start date of the co-term group period in milliseconds.
cotermGroupPeriodEndDate	integer	End date of the co-term group period in milliseconds.
cotermGroupPrimarySubscription	string	ID of the primary subscription in the co-term group. This property represents the most recently purchased subscription within the group.
cotermGroupStatus	string	Status of the co-term group (e.g., "EXECUTED").
cotermGroupOrderId	string	Order ID associated with the co-term group.
cotermGroupOrderReference	string	Order reference for the co-term group.
cotermNextChargeDate	integer	Next charge date for the co-term group in milliseconds. This value is computed by adding one day to the length of the current term (see the monthly and yearly subscription examples below). Monthly Subscription: If the co-term is initiated on February 11, the next charge date becomes March 12 (one full month plus one day). Yearly Subscription: If initiated on February 11, 2025, the next charge date becomes February 12, 2026 (one full year plus one day).
cotermNextChargeTotal	number	Total amount for the next charge, displayed in the nextChargeCurrency.
cotermNextChargeTotalDisplay	string	Formatted total amount for the next charge (e.g., "$120.05"), displayed in the nextChargeCurrency.
cotermGroupSize	string	Number of subscriptions in the co-term group.
currency	string	3-character ISO code of the currency used in the co-term group (e.g., "USD").
Changed Information
changed	integer	Timestamp of the last change in milliseconds.
changedValue	integer	Timestamp value of the last change in milliseconds.
changedInSeconds	integer	Last change timestamp in seconds.
changedDisplay	string	Formatted display date of the last change (e.g., "9/2/25") based on the associated order's language.
changedDisplayISO8601	string	ISO 8601 formatted date of the last change (e.g., "2025-09-02").
Next Charge Information
nextChargeDate	integer	Next charge date in milliseconds.
nextChargeDateValue	integer	Next charge date timestamp value in milliseconds.
nextChargeDateInSeconds	integer	Next charge date timestamp in seconds.
nextChargeDateDisplay	string	Formatted display of the next charge date (e.g., "9/10/25").
nextChargeDateDisplayISO8601	string	ISO 8601 formatted next charge date (e.g., "2025-09-10").
Payment Overdue Object
paymentOverdue.intervalUnit	string	Unit of time indicating when FastSpring sends the customer an overdue payment notification (e.g., "week").
paymentOverdue.intervalLength	integer	Number of intervalUnits following the failed rebill that FastSpring will send the first payment overdue notification.
paymentOverdue.total	integer	Total number of payment overdue notifications to be sent, including the first one.
paymentOverdue.sent	integer	Number of payment overdue notifications that have been sent to date.
Cancellation Setting Object
cancellationSetting.cancellation	string	Cancellation policy for the co-term group. Determines the timing of automatic cancellation (e.g., "AFTER_LAST_NOTIFICATION" or "AFTER_PAYMENT_FAILURE").
cancellationSetting.intervalUnit	string	Unit of time for the cancellation interval (e.g., "week").
cancellationSetting.intervalLength	integer	Number of intervalUnits following the cancellation event that the co-term group will be canceled.
Account Object
account.id	string	Unique identifier for the account.
account.contact.first	string	First name of the account contact.
account.contact.last	string	Last name of the account contact.
account.contact.email	string	Email address of the account contact.
account.contact.company	string	Company name associated with the account contact (if applicable).
account.contact.phone	string	Phone number of the account contact (if provided).
account.contact.subscribed	boolean	Indicates if the account contact is subscribed to updates.
account.address.address line 1	string	First line of the account address.
account.address.address line 2	string	Second line of the account address (if applicable).
account.address.city	string	City of the account address.
account.address.country	string	Country of the account address (ISO 3166-1 alpha-2 code).
account.address.postal code	string	Postal code of the account address.
account.address.region	string	Region of the account address (e.g., state or province).
account.address.region custom	string	Custom region information for the account address (if provided).
account.address.company	string	Company name associated with the account address (if applicable).
account.language	string	Preferred language of the account (e.g., "en"). Two-letter language code (ISO 639).
account.country	string	Country associated with the account. Two-letter country code (ISO 3166-1 alpha-2).
account.lookup.global	string	Global lookup identifier for the account.
account.url	string	FastSpring account URL for accessing the account's details.
Subscriptions Array
subscriptions.id	string	Unique identifier for the subscription.
subscriptions.active	boolean	Indicates if the subscription is active.
subscriptions.state	string	Current state of the subscription (e.g., trial, active, canceled).
subscriptions.isSubscriptionEligibleForPauseByBuyer	boolean	Indicates if the subscription can be paused by the buyer.
subscriptions.isPauseScheduled	boolean	Indicates if a pause is scheduled for the subscription.
subscriptions.lastRebillOrderAcquisition	string	Identifier for the last rebill acquisition order.
subscriptions.live	boolean	Indicates if the subscription is live or in test mode.
subscriptions.currency	string	3-character ISO code of the currency used for billing (e.g., "USD")
subscriptions.product	string	Product associated with the subscription.
subscriptions.sku	string	Stock Keeping Unit (SKU) for the subscription (if applicable).
subscriptions.display	string	Display name of the subscription product.
subscriptions.quantity	integer	Quantity of the subscription product.
subscriptions.adhoc	boolean	Indicates if the subscription is ad-hoc.
subscriptions.autoRenew	boolean	Indicates if the subscription is set to auto-renew.
subscriptions.price	number	Price of the subscription.
subscriptions.discount	number	Discount amount applied to the subscription.
subscriptions.subtotal	number	Subtotal amount of the subscription.
subscriptions.end	string	End date of the subscription (if applicable).
subscriptions.canceledDate	string	Date when the subscription was canceled (if applicable).
subscriptions.deactivationDate	string	Date when the subscription was deactivated (if applicable).
subscriptions.sequence	integer	Sequence number of the current billing period.
subscriptions.periods	string	Total number of billing periods. This applies to subscriptions with a fixed number of rebills.
subscriptions.remainingPeriods	string	Number of remaining rebills. This is based on the number of expected periods.
subscriptions.begin	integer	Date that the subscription was activated, in milliseconds.
subscriptions.intervalUnit	string	Time unit used to determine the subscription's rebill frequency (e.g., adhoc, day, week, month, year).
subscriptions.intervalUnitAbbreviation	string	Abbreviation for the interval unit (e.g., "wk").
subscriptions.intervalLength	integer	Number of intervalUnits per billing period for the subscription.
subscriptions.intervalLengthGtOne	boolean	Indicates if the interval length is greater than one.
subscriptions.nextChargeCurrency	string	3-character ISO currency code for the next charge (e.g., "USD").
subscriptions.nextChargeDate	integer	Next charge date for the subscription in milliseconds.
subscriptions.nextChargePreTax	integer	Pre-tax amount for the next charge.
subscriptions.nextChargeTotal	integer	Total amount for the next charge.
subscriptions.taxExemptionData	string	Details about tax exemptions (if applicable).
subscriptions.currency	string	Currency of the subscription (e.g., "USD").
subscriptions.totalWithTaxes	integer	Total subscription amount including taxes.
subscriptions.totalWithTaxesDisplay	string	Formatted total subscription amount including taxes (e.g., "$0.04").
Add-ons Array (within Subscriptions array)
subscriptions.addons.product	string	Product (product-path) associated with the add-on.
subscriptions.addons.sku	string	SKU for the add-on (if applicable).
subscriptions.addons.display	string	Display name for the add-on.
subscriptions.addons.quantity	integer	Quantity of the add-on.
subscriptions.addons.price	integer	Price per unit of the add-on.
subscriptions.addons.discount	integer	Coupon amount applied to the add-on.
subscriptions.addons.subtotal	integer	Subtotal amount for the add-on.
subscriptions.addons.subtotalDisplay	integer	Add-on subtotal, formatted for display.
subscriptions.addons.discounts	array	Coupon code(s) applied to the add-on.
Fulfillments Object (within Subscriptions array)
subscriptions.fulfillments	object	Fulfillment details for the subscription.
Instructions Array (within Subscriptions array)
subscriptions.instructions.product	string	Product (product-path) associated with the instruction.
subscriptions.instructions.type	string	Type of instruction. A subscription may have more than one instructions object when applicable: trial: only exists if there's a free trial discounted: only exists if there's a product-level discount regular: always present
subscriptions.instructions.periodStartDate	integer	Start date of the period in milliseconds.
subscriptions.instructions.periodEndDate	string	End date of the period (if applicable).
subscriptions.instructions.intervalUnit	string	Time unit for the interval (e.g., "week").
subscriptions.instructions.intervalLength	integer	Length of the interval.
subscriptions.instructions.discountDurationUnit	string	Unit of time used to determine the remaining discount duration, excluding the current discount period. Only appears when type is "discounted" or "trial".
subscriptions.instructions.discountDurationLength	integer	Number of discount duration units remaining, excluding the current discount period. Only appears when type is "discounted" or "trial".
subscriptions.instructions.discountPercent	integer	Discount percentage applied to the instruction.
subscriptions.instructions.discountTotal	integer	Total discount applied to the instruction.
subscriptions.instructions.unitDiscount	integer	Discount per unit for the instruction.
subscriptions.instructions.price	integer	Price per unit for the instruction.
subscriptions.instructions.priceTotal	integer	Total price for the instruction.
subscriptions.instructions.unitPrice	integer	Unit price for the instruction before taxes.
subscriptions.instructions.total	integer	Total amount for the instruction before taxes.
subscriptions.instructions.totalWithTaxes	integer	Total amount for the instruction including taxes.
subscriptions.instructions.totalWithTaxesDisplay	string	Formatted total amount for the instruction including taxes (e.g., "$0.04").
subscriptions.instructions.isNotTrial	boolean	Indicates if the instruction is not a trial.