> ## Documentation Index > Fetch the complete documentation index at: https://docs.filexpress.app/llms.txt > Use this file to discover all available pages before exploring further. # Update product > Same fields as creation. A change to `availability` generates an inventory adjustment. **Required permission:** `products` ## OpenAPI ````yaml /api-reference/openapi.en.json put /products/{id} openapi: 3.0.3 info: title: FileXpress External API version: 1.0.0 description: >- API for integrating third-party systems with FileXpress: billing, HR, accounting, inventory, projects, accounts receivable and payable, treasury, pricing and promotions, and cash. Current base URL: /api/external/v1. The legacy unversioned path (/api/external) will be removed on January 1, 2027; migrate to /api/external/v1 (same endpoints, only the base URL changes). The v2 API (/api/external/v2) exposes currencies and exchange rates, sales and purchases in foreign currency, taxes by id, payrolls with branch, and errors with a stable `code`; its operations carry the /v2 prefix in the path. We suggest migrating to the available v2 routes before March 30, 2027. servers: - url: https://api.filexpress.app/api/external/v1 description: Production security: - ApiKey: [] tags: - name: General - name: Billing · Sales - name: Billing · Purchases - name: Billing · Customers - name: Billing · Suppliers - name: Billing · Products - name: Catalogs - name: HR · Employees - name: HR · Attendance - name: HR · Labor rules - name: HR · Schedules - name: HR · Holidays - name: HR · Attendance results - name: HR · Leave requests - name: HR · Payrolls - name: Accounting - name: Inventory - name: Projects - name: Accounts receivable - name: Accounts payable - name: Treasury - name: Pricing and promotions - name: Cash - name: Points of sale - name: API v2 · General - name: API v2 · Currencies and rates - name: API v2 · Countries - name: API v2 · Sales - name: API v2 · Purchases - name: API v2 · Payrolls paths: /products/{id}: put: tags: - Billing · Products summary: Update product description: >- Same fields as creation. A change to `availability` generates an inventory adjustment. **Required permission:** `products` parameters: - name: id in: path required: true description: Product ID schema: type: string format: uuid example: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ProductRequest' example: name: Refresco 350ml sku: BEB-001 price_before_taxes: 1.11 cost: 0.7 tax_method: is_taxed composition_type: simple product_type: phisical product_category_id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 product_measurement_id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 branch_id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 availability: 100 limit_availability: 10 tax_ids: - 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 responses: '200': description: Product updated content: application/json: example: success: true data: id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 name: Refresco 350ml sku: BEB-001 price_before_taxes: 1.11 cost: 0.7 tax_method: is_taxed composition_type: simple product_type: phisical product_category_id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 product_measurement_id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 availability: 100 limit_availability: 10 taxes: - id: 9d1c5a3e-4b7f-4e2a-9c1d-2f6b8a0e7c11 name: IVA number_code: '20' tax_type: percentage percent: 0.13 message: Data retrieved successfully. '401': $ref: '#/components/responses/E401' '403': $ref: '#/components/responses/E403' '404': $ref: '#/components/responses/E404' '429': $ref: '#/components/responses/E429' components: schemas: ProductRequest: type: object properties: name: type: string sku: type: string price_before_taxes: type: number cost: type: number tax_method: type: string description: VAT treatment. enum: - is_taxed - is_exent - is_not_subject composition_type: type: string description: Composition. enum: - simple - with_portions - with_recipe product_type: type: string description: Type. enum: - phisical - service - both product_category_id: type: string format: uuid product_measurement_id: type: string format: uuid branch_id: type: string format: uuid availability: type: number description: Stock. limit_availability: type: number description: Minimum stock. tax_ids: type: array items: type: string format: uuid description: >- Product taxes (GET /taxes/branch/{branch_id}). For taxable items, send at least VAT (IVA). On update: omitted = kept; [] = removed. base_unit_quantity: type: number description: Required with portions. base_unit: type: string description: Required with portions. portions: type: array items: type: object properties: portion_name: type: string portion_quantity: type: number portion_unit: type: string portion_price: type: number is_active: type: boolean components: type: array items: type: object properties: component_product_id: type: string format: uuid quantity_needed: type: number unit_type: type: string required: - name - price_before_taxes - product_category_id - product_measurement_id - product_type - tax_method - composition_type - branch_id - availability - limit_availability responses: E401: description: Missing or invalid API Key content: application/json: example: status: false message: Invalid API Key. E403: description: Integration without the required permission or deactivated content: application/json: example: status: false message: This integration does not have the 'hr.employees' permission. required_scope: hr.employees E404: description: Resource does not exist or belongs to another business content: application/json: example: status: false message: Not found. E429: description: Rate limit exceeded content: application/json: example: status: false message: Rate limit exceeded. Please try again later. rate_limit: 100 securitySchemes: ApiKey: type: apiKey in: header name: X-API-Key description: Integration API Key (Integrations → New Integration). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.