> ## Documentation Index > Fetch the complete documentation index at: https://docs.erp.arukz.com/llms.txt > Use this file to discover all available pages before exploring further. # Create operation type > Create a new operation type ## OpenAPI ````yaml /api-reference/openapi.json post /admin/api/v1/inventories/operation-types openapi: 3.0.3 info: title: ARUKZ ERP API version: v1 description: >- The REST API of ARUKZ ERP: sales, purchases, inventory, products, partners, accounts, projects and reference data. Every call acts as the user whose token it carries and sees only that user's company. servers: - url: https://erp.arukz.com description: ARUKZ ERP (hosted) security: - bearerAuth: [] tags: - name: Authentication description: Sign in for a token and sign out. - name: Sales description: Quotations, sales orders and their lines, deliveries and invoices. - name: Purchases description: Purchase orders, receipts, bills, agreements and vendor price lists. - name: Inventory description: >- Warehouses, locations, lots, stock quantities, receipts, deliveries, transfers and scrap. - name: Products description: 'The product catalogue: categories, attributes, variants and packaging.' - name: Partners description: Customers, vendors, contacts, addresses and bank accounts. - name: Accounts description: >- Invoices, bills, credit notes, refunds, taxes, journals and the chart of accounts. - name: Projects description: Projects, tasks, stages and milestones. - name: Reference data description: Currencies and rates, banks, countries, states and units of measure. paths: /admin/api/v1/inventories/operation-types: post: tags: - Inventory summary: Create operation type description: Create a new operation type operationId: inventory-operation-types-create-operation-type requestBody: required: true content: application/json: schema: type: object properties: name: type: string description: >- Operation type name. Must not be greater than 255 characters. example: Receipts type: type: string description: Operation type value. enum: - incoming - outgoing - internal - dropship example: incoming sequence_code: type: string description: Sequence prefix. Must not be greater than 255 characters. example: IN print_label: type: boolean description: Generate shipping labels. nullable: true example: false warehouse_id: type: integer description: >- Warehouse ID. The `id` of an existing record in the inventories_warehouses table. nullable: true example: 1 reservation_method: type: string description: Reservation method. enum: - at_confirm - manual - by_date nullable: true example: at_confirm auto_show_reception_report: type: boolean description: Auto show reception report. nullable: true example: false company_id: type: integer description: >- Company ID. The `id` of an existing record in the companies table. nullable: true example: 1 return_operation_type_id: type: integer description: >- Return operation type ID. The `id` of an existing record in the inventories_operation_types table. nullable: true example: 2 create_backorder: type: string description: Backorder policy. enum: - ask - always - never example: ask move_type: type: string description: Shipping policy. enum: - direct - one nullable: true example: direct use_create_lots: type: boolean description: Allow creating new lots. nullable: true example: false use_existing_lots: type: boolean description: Allow selecting existing lots. nullable: true example: false source_location_id: type: integer description: >- Source location ID. The `id` of an existing record in the inventories_locations table. example: 1 destination_location_id: type: integer description: >- Destination location ID. The `id` of an existing record in the inventories_locations table. example: 2 required: - create_backorder - destination_location_id - name - sequence_code - source_location_id - type responses: '201': description: Created content: application/json: example: data: id: 1 name: Receipts type: incoming sort: 1 sequence_code: IN reservation_method: at_confirm reservation_days_before: 0 reservation_days_before_priority: 0 product_label_format: 2x7xprice lot_label_format: 4x12_lots package_label_to_print: pdf barcode: WHIN create_backorder: ask move_type: direct show_entire_packs: false use_create_lots: true use_existing_lots: true print_label: false show_operations: false auto_show_reception_report: false auto_print_delivery_slip: false auto_print_return_slip: false auto_print_product_labels: false auto_print_lot_labels: false auto_print_reception_report: false auto_print_reception_report_labels: false auto_print_packages: false auto_print_package_label: false created_at: '2025-04-07T13:12:33.000000Z' updated_at: '2025-04-07T13:12:33.000000Z' deleted_at: null message: Operation type created successfully. '401': description: Unauthenticated content: application/json: example: message: Unauthenticated. '422': description: Validation error content: application/json: example: message: The given data was invalid. errors: name: - The name field is required. components: securitySchemes: bearerAuth: type: http scheme: bearer description: >- An API token from [Sign in](/api-reference/authentication), sent as `Authorization: Bearer `. Tokens last 30 days. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.