> ## Documentation Index > Fetch the complete documentation index at: https://juo.dev/llms.txt > Use this file to discover all available pages before exploring further. # Update a subscription discount > Used to update a subscription discount. ## OpenAPI ````yaml openapi-admin.json PATCH /subscriptions/{subscriptionId}/discounts/{discountId} openapi: 3.1.0 info: title: Juo Admin API version: 1.0.0 description: >- Programmatic access to subscription management for merchants. ## Core Resources - **Subscriptions** — the central entity. Belongs to a Customer, contains Items (product variants) and Discounts. Lifecycle: `active` → `paused` or `cancelled`; `paused` → `active` or `cancelled`; `cancelled` → `active` (via reactivate). - **Items** — subscription items (product variants) (quantity, price, billing/delivery policies). - **Discounts** — applied to subscriptions by discount code or manually (percentage or fixed amount, targeting subscription items or shipping). - **Customers** — customers who own subscriptions and payment methods. - **Products / Variants** — catalog products and variants that can be assigned to subscription plans. - **Schedules** — a read-only projection of upcoming billing orders, derived from subscription state, active schedule adjustments, and triggered workflows. **Schedule adjustments never modify the subscription** — they apply changes to upcoming orders matching the specified criteria (by cycle, date, or both), which may cover one or more orders. For permanent changes (billing frequency, items, payment method, delivery address), update the subscription directly. - **Workflows** — interactive customer-facing flows (retention, dunning, onboarding). Contain Steps connected by Transitions and produce Runs on each execution. Supports A/B experiment steps. ## Authentication Every request requires: - `X-Juo-Admin-Api-Key` header — the merchant's Admin API key. - `X-Tenant-ID` header — the store identifier (myshopify domain, e.g. `my-store.myshopify.com`). servers: - url: https://api.juo.io/admin/v1 security: - AdminApiKey: [] - BearerToken: [] tags: - name: subscriptions description: >- Recurring billing agreements with customers. Manage lifecycle (pause, resume, cancel, reactivate), items, and discounts. - name: customers description: Customers who own subscriptions. Create and update customer records. - name: products description: >- Products and variants linked to subscription plans. Manage catalog and plan assignments. - name: schedules description: >- Read-only view of upcoming billing orders generated from subscription state, schedule adjustments, and workflows. Use schedule adjustments for targeted changes to upcoming orders (scoped by cycle number, date, or both) — they never alter the subscription itself. For permanent changes (billing frequency, items, payment method), update the subscription directly. - name: workflows description: >- Interactive customer-facing flows for retention, dunning, and onboarding. Define steps, publish, and track execution runs and experiments. paths: /subscriptions/{subscriptionId}/discounts/{discountId}: patch: tags: - subscriptions.discounts summary: Update a subscription discount description: >- Updates an existing discount on a subscription using merge-patch semantics. Can change the discount value and recurring cycle limit. The discount target type cannot be changed after creation. parameters: - schema: format: uuid type: string in: path name: subscriptionId required: true description: The subscription identifier - schema: format: uuid type: string in: path name: discountId required: true description: The subscription discount identifier - $ref: '#/components/parameters/TenantHeader' requestBody: content: application/json: schema: type: object properties: target: anyOf: - type: object properties: type: type: string enum: - shipping required: - type - type: object properties: type: type: string enum: - line selector: anyOf: - type: object properties: type: type: string enum: - all required: - type - type: object properties: type: type: string enum: - some lines: type: array items: format: uuid type: string required: - type - lines required: - type - selector value: anyOf: - type: object properties: amount: exclusiveMinimum: 0 type: number type: type: string enum: - fixed-amount appliesOnEachItem: description: >- When true, the amount will be proportionally split among all the items. type: boolean required: - amount - type - appliesOnEachItem - type: object properties: percentage: exclusiveMinimum: 0 maximum: 100 type: number type: type: string enum: - percentage required: - percentage - type recurringCycleLimit: minimum: 1 description: >- The number of billing cycles for which this discount will be applied. After the recurring cycle limit is met the discount will be removed from the subscription. type: - 'null' - integer required: [] responses: '200': description: Default Response content: application/json: schema: $ref: '#/components/schemas/SubscriptionDiscount' '400': description: >- Bad request — invalid input or violated business rule (e.g., wrong subscription status for the requested operation). '401': description: Unauthorized — missing, expired, or invalid API key. '403': description: Forbidden — authenticated but not permitted to access this resource. '404': description: >- Not found — the resource does not exist or belongs to a different tenant. '422': description: >- Unprocessable entity — well-formed request that fails semantic validation. components: parameters: TenantHeader: name: X-Tenant-ID x-speakeasy-name-override: tenant x-speakeasy-globals-hidden: true in: header schema: type: string required: true description: >- Unique identifier of the tenant in the system (usually a store identifier) schemas: SubscriptionDiscount: type: object properties: id: format: uuid type: string resource: type: string enum: - subscription-discount title: minLength: 1 description: >- The title of the discount shown to customers, typically displayed as a discount code. type: - 'null' - string target: anyOf: - type: object properties: type: type: string enum: - shipping required: - type - type: object properties: type: type: string enum: - line selector: anyOf: - type: object properties: type: type: string enum: - all required: - type - type: object properties: type: type: string enum: - some lines: type: array items: format: uuid type: string required: - type - lines required: - type - selector value: anyOf: - type: object properties: amount: exclusiveMinimum: 0 type: number type: type: string enum: - fixed-amount appliesOnEachItem: description: >- When true, the amount will be proportionally split among all the items. type: boolean required: - amount - type - appliesOnEachItem - type: object properties: percentage: exclusiveMinimum: 0 maximum: 100 type: number type: type: string enum: - percentage required: - percentage - type recurringCycleLimit: minimum: 1 description: >- The number of billing cycles for which this discount will be applied. After the recurring cycle limit is met the discount will be removed from the subscription. type: - 'null' - integer required: - id - resource - title - target - value - recurringCycleLimit title: SubscriptionDiscount securitySchemes: AdminApiKey: type: apiKey name: X-Juo-Admin-Api-Key in: header description: >- Long-lived Admin API key issued from the Juo merchant portal. Pass as the `X-Juo-Admin-Api-Key` header. BearerToken: type: http scheme: bearer bearerFormat: JWT description: >- Short-lived JWT minted via the merchant browser-session flow. Carries the authenticated staff identity so that API calls are attributed to the specific staff user in the activity log. ````