> ## Documentation Index > Fetch the complete documentation index at: https://docs.55-tech.com/llms.txt > Use this file to discover all available pages before exploring further. # Cancel specific orders > Cancel one or more orders by filter. At least one filter must be provided. Multiple filters are combined with OR logic. **Filters:** - `orderIds` — List of numeric order IDs - `requestUuids` — List of request UUID strings - `userRef` — Cancel all orders matching this user reference **Behavior:** - Only orders in PENDING or PARTIALLY_FILLED status can be cancelled - Orders with confirmed bets cannot be fully cancelled - Cancelled orders are marked in the database and signaled to stop retry loops ## OpenAPI ````yaml /zh/abp-api/openapi.json post /cancel-orders openapi: 3.1.0 info: title: ABP v2 - Automated Bet Placing API description: > Place bets across 32 bookmakers through a single API. ## Authentication All endpoints require the `x-api-key` header (except `/health`, `/ready`, `/status`, `/metrics`). **Swagger UI**: Click the **Authorize** button (lock icon) at the top right, enter your API key, and click **Authorize**. ## Quick Start 1. **List your accounts**: `GET /accounts` 2. **Get live odds**: `GET /betslip?fixtureId=...&outcomeId=...&playerId=0` 3. **Place an order**: `POST /place-orders` 4. **Track results**: `GET /orders` or subscribe to WebSocket updates ## WebSocket Connect to `/ws` for real-time order, bet, and settlement updates. ```json {"type": "login", "apiKey": "your-api-key", "channels": []} ``` Send an empty `channels` array to receive all updates. Available channels: `orders`, `bets`, `settlements`, `accounts`, `balance`, `betslip`, `fixtures`, `currencies`, `status`, `emergency`. Send `{"type": "ping"}` every 30 seconds to keep the connection alive. version: '2.0' servers: - url: https://v2.55-tech.com description: Production security: - apiKey: [] tags: - name: Orders description: Place, retrieve, and cancel betting orders - name: Bets description: Query individual bets placed with bookmakers - name: Betslip description: Get live odds and metadata for fixtures - name: Accounts description: Manage bookmaker accounts - name: Markets description: Get available markets and odds types - name: Bookmakers description: List supported bookmakers - name: Analytics description: Positions and profit/loss analytics paths: /cancel-orders: post: tags: - Orders summary: Cancel specific orders description: >- Cancel one or more orders by filter. At least one filter must be provided. Multiple filters are combined with OR logic. **Filters:** - `orderIds` — List of numeric order IDs - `requestUuids` — List of request UUID strings - `userRef` — Cancel all orders matching this user reference **Behavior:** - Only orders in PENDING or PARTIALLY_FILLED status can be cancelled - Orders with confirmed bets cannot be fully cancelled - Cancelled orders are marked in the database and signaled to stop retry loops operationId: cancel_orders requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/CancelOrdersRequest' example: requestUuids: - ee9f4007-e5ab-4085-bffb-8d938e4cad5f - fb5f2dd9-c855-4ba9-8ef9-4c2278ca2f1d responses: '200': description: Cancellation result with enriched order details content: application/json: schema: $ref: '#/components/schemas/CancelOrdersResponse' example: status: cancelled cancelledCount: 1 cancelled: - orderId: 327 requestUuid: eb45b192-317b-42d5-9f65-af497b9fa8c1 allowedBookmakers: '*' fixtureId: id1000004461512432 outcomeId: 103 playerId: 0 orderPrice: 1.95 orderStake: 10 filledStake: 0 userRef: bettor1234 testOrder: false orderCurrency: USD back: true expiresAt: '2026-02-07T12:20:06.302841+00:00' acceptBetterOdds: true acceptPartialStake: true clientName: demo orderStatus: CANCELLED createdAt: '2026-02-07T12:20:01.302841+00:00' updatedAt: '2026-02-07T12:20:01.302841+00:00' meta: null bets: [] fixtureInfo: fixtureId: id1000004461512432 status: live: false statusId: 0 statusName: Pre-Game sport: sportId: 10 sportName: Soccer tournament: tournamentId: 44 tournamentName: 2. Bundesliga categoryName: Germany outcomeInfo: marketId: 101 marketName: Full Time Result outcomeId: 103 outcomeName: '2' notCancelled: reason: Order not cancellable orders: [] '400': description: >- Missing required filter parameter (at least one of orderIds, requestUuids, or userRef required) '401': description: Unauthorized — missing or invalid API key '403': description: Access denied — client not resolved from API key '404': description: No matching orders found '500': description: Internal server error components: schemas: CancelOrdersRequest: type: object description: >- At least one filter must be provided. Multiple filters are combined with OR logic. properties: orderIds: type: array items: type: integer nullable: true description: List of numeric order IDs to cancel requestUuids: type: array items: type: string format: uuid nullable: true description: List of request UUIDs to cancel userRef: type: string nullable: true description: Cancel all orders matching this user reference CancelOrdersResponse: type: object properties: status: type: string description: '''cancelled''' cancelledCount: type: integer description: Number of orders cancelled cancelled: type: array items: type: object description: Cancelled orders with enriched details notCancelled: type: object properties: reason: type: string orders: type: array items: type: object description: Orders that could not be cancelled securitySchemes: apiKey: type: apiKey in: header name: x-api-key description: API key for authentication. Contact contact@55-tech.com to obtain a key. ````