---
title: "Returns the lists of correlated subscriptions for a customer"
method: GET
path: "/api/internal/customers/{customerIdOrKey}/subscriptions-correlated"
tags: ["Cloud Internal"]
---

# Returns the lists of correlated subscriptions for a customer

`GET /api/internal/customers/{customerIdOrKey}/subscriptions-correlated`

Returns the lists of correlated subscriptions for a customer.

## Path parameters

- `customerIdOrKey` union, required — ULID (Universally Unique Lexicographically Sortable Identifier) or external unique key.
  - string — ULID (Universally Unique Lexicographically Sortable Identifier).
  - string — ExternalKey is a looser version of key.

## Query parameters

- `activeAfter` string, date-time

## Response `200`

The request has succeeded.

- CorrelatedCustomerSubscription — The correlated subscriptions for a customer.
  - `correlated` array[], required — The correlated subscriptions. Each array is a group of subscriptions that are correlated.
    - Subscription[]
      - `activeFrom` string, date-time, required — The cadence start of the resource.
      - `activeTo` string, date-time — The cadence end of the resource.
      - `alignment` Alignment — Alignment configuration for a plan or subscription.
        - `billablesMustAlign` boolean — Whether all Billable items and RateCards must align. Alignment means the Price's BillingCadence must align for both duration and anchor time.
      - `annotations` Annotations — Set of key-value pairs managed by the system. Cannot be modified by user.
      - `billingAnchor` string, date-time, required — The normalizedbilling anchor of the subscription.
      - `billingCadence` string, duration, required — The billing cadence for the subscriptions. Defines how often customers are billed using ISO8601 duration format. Examples: "P1M" (monthly), "P3M" (quarterly), "P1Y" (annually).
      - `costBasisMode` 'dynamic' | 'pinned', required — Controls how custom-currency cost bases are selected for the subscription.
      - `costBasisPins` SubscriptionCostBasisPin[], required — Cost bases pinned to custom-currency pairs for this subscription.
        - `costBasisId` string, required — The pinned cost basis resource ID.
        - `customCurrencyId` string, required — The managed custom currency ID.
        - `invoiceCurrency` string, required — Three-letter [ISO4217](https://www.iso.org/iso-4217-currency-codes.html) currency code. Custom three-letter currency codes are also supported for convenience.
      - `createdAt` string, date-time, required — Timestamp of when the resource was created.
      - `currency` string, required — Three-letter [ISO4217](https://www.iso.org/iso-4217-currency-codes.html) currency code. Custom three-letter currency codes are also supported for convenience.
      - `customerId` string, required — The customer ID of the subscription.
      - `deletedAt` string, date-time — Timestamp of when the resource was permanently deleted.
      - `description` string — Optional description of the resource. Maximum 1024 characters.
      - `id` string, required — A unique identifier for the resource.
      - `metadata` Metadata — Set of key-value pairs. Metadata can be used to store additional information about a resource.
      - `name` string, required — Human-readable name for the resource. Between 1 and 256 characters.
      - `plan` PlanReference — References an exact plan.
        - `id` string, required — The plan ID.
        - `key` string, required — The plan key.
        - `version` integer, required — The plan version.
      - `proRatingConfig` ProRatingConfig — Configuration for pro-rating behavior.
        - `enabled` boolean, required — Whether pro-rating is enabled for this plan.
        - `mode` 'prorate_prices', required — Pro-rating mode options for handling billing period changes.
      - `settlementMode` 'credit_then_invoice' | 'credit_only', required — The settlement mode of a plan. It determines how the billing system generates invoices and credits for the subscriptions using this plan. - credit_then_invoice: credits from the previous billing period are applied first, then the remaining balance is invoiced. This is the default and most common settlement mode. - credit_only: only credits from the previous billing period are generated and applied. No invoices are generated for the subscription.
      - `status` 'active' | 'inactive' | 'canceled' | 'scheduled', required — Subscription status.
      - `updatedAt` string, date-time, required — Timestamp of when the resource was last updated.

## Other responses

- `400` — The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).
- `401` — The request has not been applied because it lacks valid authentication credentials for the target resource.
- `403` — The server understood the request but refuses to authorize it.
- `412` — One or more conditions given in the request header fields evaluated to false when tested on the server.
- `500` — The server encountered an unexpected condition that prevented it from fulfilling the request.
- `503` — The server is currently unable to handle the request due to a temporary overload or scheduled maintenance, which will likely be alleviated after some delay.
- `default` — An unexpected error response.

---

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