> ## Documentation Index
> Fetch the complete documentation index at: https://docs.salesbricks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update a subscription upgrade

> Updates a subscription upgrade order. This endpoint allows you to modify bricks, AP contacts, and other properties for an existing upgrade order.

**How `plan_id` affects pricing:**

- **`plan_id` omitted** — the upgrade keeps the subscription's current plan version and contracted pricing (customers stay grandfathered). If `bricks` includes a brick that doesn't exist on the current plan version, it is pulled in from that plan's latest published version, producing a merged plan version.
- **`plan_id` provided** — the upgrade switches to the latest published version of the referenced plan. If `bricks` references a brick that only exists on the subscription's prior plan version, it is carried over into a merged plan version.
- `plan_id` may reference a different plan than the subscription's current plan; that is how cross-plan upgrades are expressed.
- **`plan_id` is only honoured when `bricks` is also provided.** Sending `plan_id` without `bricks` returns 400.



## OpenAPI

````yaml https://api.salesbricks.com/api/v2/openapi.yaml patch /subscriptions/{subscription_id}/upgrade/{order_id}
openapi: 3.0.3
info:
  title: Salesbricks REST API
  version: 2.0.0
  description: API reference for external integrations
servers:
  - url: https://api.salesbricks.com/api/v2
    description: Production
  - url: https://api.staging.salesbricks.com/api/v2
    description: Staging
security:
  - ApiKeyAuth: []
tags:
  - name: Subscriptions
    description: >-
      Operations related to subscription management, including creation,
      updates, and retrieving subscription details. Subscriptions can be
      upgraded to add / remove add-ons by using the POST
      /subscriptions/{subscription_id}/upgrade endpoint and can be recasted for
      replacing the current agreement using the POST
      /subscriptions/{subscription_id}/recast endpoint
  - name: Customers
    description: >-
      Operations related to customer management, including creation, updates,
      and managing customer person objects.
  - name: Invoices
    description: Operations related to subscription's invoicing details.
  - name: Plans
    description: >-
      Operations related to listing and getting plan details including bricks in
      the plan.
  - name: Payment Methods
    description: Operations related to subscription's payment method.
paths:
  /subscriptions/{subscription_id}/upgrade/{order_id}:
    patch:
      tags:
        - Subscription Upgrades
      summary: Update a subscription upgrade
      description: >-
        Updates a subscription upgrade order. This endpoint allows you to modify
        bricks, AP contacts, and other properties for an existing upgrade order.


        **How `plan_id` affects pricing:**


        - **`plan_id` omitted** — the upgrade keeps the subscription's current
        plan version and contracted pricing (customers stay grandfathered). If
        `bricks` includes a brick that doesn't exist on the current plan
        version, it is pulled in from that plan's latest published version,
        producing a merged plan version.

        - **`plan_id` provided** — the upgrade switches to the latest published
        version of the referenced plan. If `bricks` references a brick that only
        exists on the subscription's prior plan version, it is carried over into
        a merged plan version.

        - `plan_id` may reference a different plan than the subscription's
        current plan; that is how cross-plan upgrades are expressed.

        - **`plan_id` is only honoured when `bricks` is also provided.** Sending
        `plan_id` without `bricks` returns 400.
      operationId: updateSubscriptionUpgrade
      parameters:
        - in: path
          name: order_id
          schema:
            type: string
            pattern: ^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$
          required: true
        - in: path
          name: subscription_id
          schema:
            type: string
            pattern: ^([a-zA-Z\d\-]+)$
          required: true
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PatchedSubscriptionUpgradePatch'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/PatchedSubscriptionUpgradePatch'
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/PatchedSubscriptionUpgradePatch'
      responses:
        '200':
          content:
            application/json:
              schema:
                type: object
                properties:
                  subscription_id:
                    type: string
          description: ''
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                BadRequestResponse:
                  value:
                    error:
                      code: ERR_BAD_REQUEST
                      message: >-
                        Bad request — the input payload is malformed, missing
                        required fields, or contains invalid data.
                  summary: Bad Request Response
          description: ''
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                NotFoundResponse:
                  value:
                    error:
                      code: ERR_NOT_FOUND
                      message: >-
                        Not found — the resource you are looking for does not
                        exist.
                  summary: Not Found Response
          description: ''
components:
  schemas:
    PatchedSubscriptionUpgradePatch:
      type: object
      description: >-
        Subscription input serializer for upgrade PATCH operations.

        Excludes immutable fields: contract_length, billing_frequency, currency.


        These fields are inherited from the base order and cannot be changed
        during an upgrade.

        starts_at IS allowed to be changed (e.g., for Kognitos integration).
      properties:
        starts_at:
          type: string
          format: date
          description: The start date of the subscription.
        plan_id:
          type: string
          format: uuid
          description: The ID of the plan.
        bricks:
          type: array
          items:
            $ref: '#/components/schemas/LineItemInput'
          description: The bricks included in the subscription.
        discount_coupons:
          type: array
          items:
            type: string
          description: >-
            Discount coupon codes to apply to the subscription. Currently only
            supports one discount coupon - only the first one in the list will
            be applied.
        point_of_contact_id:
          type: string
          format: uuid
          description: The ID of the point of contact (Person) object
        signatory_user_id:
          type: string
          format: uuid
          description: The ID of the signatory user (Person) object
        auto_renews:
          type: boolean
          description: Whether the subscription auto-renews. Defaults to true.
        accounts_payable_emails:
          type: array
          items:
            type: string
            format: email
          description: List of email addresses for accounts payable contacts
        customer_id:
          type: string
          format: uuid
          description: The ID of the customer
        payment_terms:
          type: integer
          maximum: 999
          minimum: 0
          description: >-
            The number of days from an invoice being generated that the buyer is
            expected to pay in
        renewal_contract_period:
          type: integer
          minimum: 1
          nullable: true
          description: >-
            The contract period for renewals in months. If null, inherits from
            initial contract period.
        renewal_uplifted_rate:
          type: string
          format: decimal
          pattern: ^-?\d{0,3}(?:\.\d{0,2})?$
          nullable: true
          description: >-
            The percentage rate to uplift renewal pricing. If null, no uplift is
            applied.
        transaction_method:
          enum:
            - ORDER_FORM
            - STRIPE
          type: string
          x-spec-enum-id: c68094511bb51423
          description: |-
            The medium by which the order is agreed.

            * `ORDER_FORM` - Order form
            * `STRIPE` - Stripe
        metadata:
          nullable: true
          description: >-
            Optional metadata to add to the subscription. Sending an empty map
            will delete all keys. Keys prefixed with _ are private and will be
            ignored.
        custom_order_form_html:
          type: string
          description: >-
            The custom order form html to use with
            `<html><body>...</body></html>` formatting
        accepted_payment_methods_config:
          allOf:
            - $ref: '#/components/schemas/AcceptedPaymentMethodsConfig'
          nullable: true
          description: >-
            Configuration for accepted payment methods during checkout and
            paywall
        first_charge_date:
          enum:
            - CONTRACT_START_DATE
            - CHECKOUT_DATE
          type: string
          x-spec-enum-id: 453208d46b2cb502
          description: >-
            When the first invoice should be charged. If not provided, defaults
            to seller's first_charge_date setting, or CHECKOUT_DATE if seller
            has no setting.


            * `CONTRACT_START_DATE` - Contract Start Date

            * `CHECKOUT_DATE` - Checkout Date
        legal_entity_id:
          type: string
          format: uuid
          nullable: true
          description: >-
            Optional ID of the legal entity that issues this subscription. Falls
            back to the seller's default legal entity when omitted.
    ErrorResponse:
      type: object
      description: >-
        Standardizes API error responses with a consistent structure containing
        error code and message.
      properties:
        error:
          $ref: '#/components/schemas/Error'
      required:
        - error
    LineItemInput:
      type: object
      description: Line item input serializer for creating a new estimate
      properties:
        brick_id:
          type: string
          format: uuid
        quantity:
          type: integer
        discount:
          type: array
          items:
            $ref: '#/components/schemas/LineItemDiscount'
          nullable: true
          description: >-
            A list of discounts to apply to the line item — at most one renewing
            rate, one one-time rate, and one fixed amount.
      required:
        - brick_id
    AcceptedPaymentMethodsConfig:
      type: object
      description: |-
        Serializer for accepted payment methods configuration.
        Modelled after spearhead/seller/models.py:AcceptedPaymentMethodsConfig.
      properties:
        paywall_credit_card:
          type: boolean
          default: true
          description: >-
            If card is allowed at paywall. Dependent on seller's Stripe
            capabilities.
        paywall_check:
          type: boolean
          default: true
          description: If pay by check is allowed at paywall.
        paywall_ach:
          type: boolean
          default: true
          description: >-
            If ACH is allowed at paywall. Dependent on seller's Stripe
            capabilities.
        paywall_wire:
          type: boolean
          default: true
          description: If pay by wire is allowed at paywall.
        checkout_credit_card:
          type: boolean
          default: true
          description: >-
            If card is allowed during checkout. Dependent on seller's Stripe
            capabilities.
        checkout_ach:
          type: boolean
          default: true
          description: >-
            If ACH is allowed during checkout. Dependent on Seller's Stripe
            capabilities.
        checkout_order_form:
          type: boolean
          default: true
          description: If Order Form is allowed during checkout.
        minimum_order_form_tcv:
          type: integer
          default: 0
          description: >-
            The minimum total value which an order must have in order to qualify
            for an order form checkout.
        paywall_force_autopay:
          type: boolean
          default: false
          description: If true a buyer cannot opt out of autopay when paying invoices
    Error:
      type: object
      description: >-
        Represents individual error details with a standardized code and
        descriptive message.
      properties:
        code:
          enum:
            - ERR_NOT_FOUND
            - ERR_BAD_REQUEST
            - ERR_SERVER_ERROR
          type: string
          x-spec-enum-id: dc5a5d6feae1b697
          description: >-
            Error code indicating the type of error: NOT_FOUND for missing
            resources, BAD_REQUEST for invalid input, SERVER_ERROR for internal
            server issues


            * `ERR_NOT_FOUND` - ERR_NOT_FOUND

            * `ERR_BAD_REQUEST` - ERR_BAD_REQUEST

            * `ERR_SERVER_ERROR` - ERR_SERVER_ERROR
        message:
          type: string
        error_id:
          type: string
          format: uuid
          description: >-
            Correlation handle for SERVER_ERROR responses — quote this when
            contacting support; it joins to the structured server log line for
            the failure. Not present on 4xx responses.
      required:
        - code
        - message
    LineItemDiscount:
      type: object
      description: Discount serializer for a subscription estimate line item
      properties:
        rate:
          type: string
          format: decimal
          pattern: ^-?\d{0,14}(?:\.\d{0,6})?$
          description: >-
            The discount rate as a percentage with up to six decimal places
            (e.g. 10 = 10%, 62.6758 = 62.6758%). Mutually exclusive with
            `amount`.
        amount:
          type: integer
          description: >-
            A fixed discount amount in cents (e.g. 1000 = $10.00). One-time only
            — `renews` must be false when `amount` is set. Mutually exclusive
            with `rate`. The amount is applied as-is and is not clamped to the
            line item total, so it should not exceed the brick's price.
        renews:
          type: boolean
          default: false
          description: >-
            If the discount is carried over at renewal. Must be false when
            `amount` is set, as fixed discounts are one-time only.
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-SALESBRICKS-KEY
      description: API key for authentication

````

## Related topics

- [Navigating Salesbricks](/quickstart-guide/navigating-salesbricks.md)
- [Order Types](/documentation/order-types.md)
- [subscription.inactive](/api-reference/webhooks/subscription/inactive.md)
