> ## Documentation Index > Fetch the complete documentation index at: https://developers.appstle.com/llms.txt > Use this file to discover all available pages before exploring further. # Cancel membership contract > Cancels a membership contract and sends cancellation confirmation emails. This endpoint terminates the recurring membership and processes all cancellation workflows. **Cancellation Process:** - **Contract Termination**: Marks membership as cancelled in Shopify - **Billing Stop**: Prevents future billing attempts - **Email Notification**: Sends cancellation confirmation to customer - **Activity Logging**: Records cancellation event with source and feedback - **Feedback Capture**: Optional cancellation reason for analytics **Key Features:** - **Immediate Cancellation**: Stops membership processing immediately - **Feedback Collection**: Capture customer cancellation reasons - **Automated Emails**: Customer receives cancellation confirmation - **Activity Tracking**: Logs cancellation to activity history - **Source Attribution**: Tracks whether cancellation came from customer portal or API **Validation Checks:** - **Contract Ownership**: Verifies contract belongs to authenticated shop - **Minimum Cycles**: Checks if minimum billing cycles requirement is met (if configured) - **Freeze Status**: Validates membership is not frozen - **Existing Status**: Ensures contract is not already cancelled **Email Notifications:** - Sends cancellation confirmation to customer email - Includes membership details and cancellation date - Uses customizable email templates from shop settings **Use Cases:** - Allow customers to cancel from custom portals or mobile apps - Bulk cancellation workflows via external systems - Integration with customer service platforms - Automated cancellation based on business rules - Churn management and retention workflows **Authentication:** Requires API key authentication via X-API-Key header or api_key parameter ## OpenAPI ````yaml /memberships/admin-api-swagger.json delete /api/external/v2/subscription-contracts/{id} openapi: 3.0.1 info: description: >- Comprehensive API documentation for managing memberships, payments, and related operations. These APIs allow you to programmatically manage membership lifecycles, handle payments, configure products, and integrate membership functionality into your applications. title: Admin APIs version: 0.0.1 servers: - url: https://membership-admin.appstle.com security: [] tags: - description: >- APIs for retrieving product swap/substitution options allowing members to exchange membership items based on configured swap rules and variant groups name: Product Swap Rules - description: >- APIs for managing customer payment methods, payment tokens, and payment method retrieval for memberships name: Customer Payment Methods - description: >- APIs for managing one-time product additions to upcoming membership orders, including adding, retrieving, and removing one-off items name: One-Time Add-Ons - description: >- APIs for managing membership contracts including creation, updates, status changes, line items, discounts, and billing operations name: Membership Contracts - description: >- APIs for retrieving historical discount code usage and redemption information for membership contracts name: Customer Discount History - description: >- APIs for managing customer portal settings including UI customization, text labels, feature toggles, and branding options for the member self-service portal name: Customer Portal Configuration - description: >- APIs for retrieving custom CSS styles applied to membership widgets and customer portal for theme customization name: Custom CSS Styling - description: >- APIs for managing membership cancellation flow settings including retention offers, survey questions, and cancel confirmation screens name: Cancellation Flow Configuration - description: >- APIs for managing membership billing attempts, recurring orders, payment retries, order history, and order skipping name: Billing & Orders - description: >- APIs for managing Shopify delivery profiles, shipping rates, zones, and free shipping configuration for membership memberships name: Shipping & Delivery Profiles - description: >- APIs for managing membership plan groups, including creating plans, configuring discounts, billing intervals, and assigning products to plans name: Membership Plans - description: >- APIs for retrieving product catalog, variants, pricing, and inventory information for memberships. name: Product & Inventory Data - description: >- APIs for managing shop-level membership settings, configuration, and general store information. name: Shop Settings - description: >- APIs for performing bulk/mass operations on multiple membership contracts including status updates, product replacements, and billing date changes. name: Bulk Operations paths: /api/external/v2/subscription-contracts/{id}: delete: tags: - Membership Contracts summary: Cancel membership contract description: >- Cancels a membership contract and sends cancellation confirmation emails. This endpoint terminates the recurring membership and processes all cancellation workflows. **Cancellation Process:** - **Contract Termination**: Marks membership as cancelled in Shopify - **Billing Stop**: Prevents future billing attempts - **Email Notification**: Sends cancellation confirmation to customer - **Activity Logging**: Records cancellation event with source and feedback - **Feedback Capture**: Optional cancellation reason for analytics **Key Features:** - **Immediate Cancellation**: Stops membership processing immediately - **Feedback Collection**: Capture customer cancellation reasons - **Automated Emails**: Customer receives cancellation confirmation - **Activity Tracking**: Logs cancellation to activity history - **Source Attribution**: Tracks whether cancellation came from customer portal or API **Validation Checks:** - **Contract Ownership**: Verifies contract belongs to authenticated shop - **Minimum Cycles**: Checks if minimum billing cycles requirement is met (if configured) - **Freeze Status**: Validates membership is not frozen - **Existing Status**: Ensures contract is not already cancelled **Email Notifications:** - Sends cancellation confirmation to customer email - Includes membership details and cancellation date - Uses customizable email templates from shop settings **Use Cases:** - Allow customers to cancel from custom portals or mobile apps - Bulk cancellation workflows via external systems - Integration with customer service platforms - Automated cancellation based on business rules - Churn management and retention workflows **Authentication:** Requires API key authentication via X-API-Key header or api_key parameter operationId: deleteSubscriptionContractV2 parameters: - description: Membership contract ID to cancel example: 123456789 in: path name: id required: true schema: format: int64 type: integer - description: API Key (Deprecated - Use Header X-API-Key instead) in: query name: api_key required: false schema: type: string - in: header name: X-API-Key required: false schema: type: string - description: Optional cancellation reason/feedback from customer example: Too expensive in: query name: cancellationFeedback required: false schema: type: string responses: '204': description: Membership successfully cancelled, confirmation email sent '400': content: application/json: example: detail: >- This membership requires 3 minimum billing cycles before cancellation errorKey: min_cycles_not_met status: 400 title: Bad Request description: >- Cancellation not allowed (minimum cycles not met, contract frozen, etc.) '401': description: Authentication required - invalid or missing API key '404': description: Membership contract not found '500': description: Shopify API error or email sending failure ````