> ## Documentation Index > Fetch the complete documentation index at: https://www.commercengine.io/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create inventory activity > Create inventory activity ## OpenAPI ````yaml https://openapi.commercengine.io/ce-admin.json post /catalog/marketplace/products/{id}/inventory-activity openapi: 3.1.0 info: title: CE Admin APIs version: '1.0' summary: Comprehensive admin interface for managing your e-commerce platform description: >- Complete administrative API suite for Commerce Engine, providing powerful tools to manage products, orders, customers, inventory, analytics, and system configuration. Designed for administrators and backend integrations requiring full platform control. license: name: All Rights Reserved url: https://www.commercengine.io/contact-us contact: email: support@commercengine.io url: https://www.commercengine.io/contact-us name: Support servers: - url: https://staging.api.commercengine.io/api/v1/{store_id}/admin description: Staging Server variables: store_id: default: store_id description: Store ID - url: https://prod.api.commercengine.io/api/v1/{store_id}/admin description: Prod Server variables: store_id: default: store_id description: Store ID security: - Authorization: [] tags: - name: Analytics description: Analytics - name: Catalog description: Catalog - name: Coupons & promotions description: Coupons & promotions - name: Customers description: Customers - name: Filter Options description: Filter Options - name: Inventories description: Inventories - name: Marketplace description: Marketplace - name: Marketplace Catalog description: Marketplace Catalog - name: Media Gallery description: Media Gallery - name: Metrics description: Metrics - name: Orders description: Orders - name: Payments description: Payments - name: Payouts description: Payouts - name: POS description: POS - name: POSAdmin description: Admin endpoints to be used as proxy in pos - name: Segments description: Segments - name: Shipping description: Shipping - name: SSE description: SSE - name: Store description: Store - name: Webhooks description: Webhooks paths: /catalog/marketplace/products/{id}/inventory-activity: parameters: - name: id in: path description: product id required: true schema: type: string post: tags: - Marketplace Catalog summary: Create inventory activity description: Create inventory activity operationId: create-marketplace-inventory-activity requestBody: content: application/json: schema: $ref: '#/components/schemas/ProductInventoryActivity' responses: '200': description: OK content: application/json: schema: type: object properties: message: type: string success: type: boolean content: properties: inventory_activity: allOf: - $ref: '#/components/schemas/ProductInventoryActivity' - type: object properties: warehouse: $ref: '#/components/schemas/Warehouse' type: object security: - Authorization: [] components: schemas: ProductInventoryActivity: type: object required: - warehouse_id - activity_type - quantity - reason properties: product_id: type: string readOnly: true variant_id: description: optional. can be null for non variant product. type: string warehouse_id: type: string maxLength: 128 sku: type: string readOnly: true activity_type: enum: - add - reserve - reduce quantity: type: integer reason: type: string maxLength: 512 lot_batch: type: - string - 'null' mfg_date: type: - string - 'null' format: date exp_date: type: - string - 'null' format: date manufacturer: type: string created_at: type: string format: date-time readOnly: true modified_at: type: string format: date-time readOnly: true x-tags: - Catalog Warehouse: title: Warehouse description: >- Validations: 1) Either 'can_receive_stock' or 'accepts_returns' must be set to true. 2) 'can_receive_stock' cannot be set to false while the warehouse has existing inventory. 3) 'is_checkout_point' must be true when the warehouse type is 'retail-store'. 4) If 'can_receive_stock' is false then 'can_ship_parcel' and 'can_collect' fields should be false. type: object required: - name - warehouse_type - city - address_line1 - pincode - state - country - contact_phone - contact_email - can_receive_stock - can_ship_parcel - can_collect - is_checkout_point - accepts_returns properties: id: description: warehouse id type: string readOnly: true name: description: legal name type: string warehouse_type: enum: - retail-store - distribution-center active: type: boolean default: true gstin: type: - string - 'null' city: type: string address_line1: type: string address_line2: type: - string - 'null' landmark: type: - string - 'null' pincode: type: string state: type: string country: type: string country_code: type: string default: '+91' contact_phone: description: 10 digit number without country code. type: number contact_email: type: string is_default: type: boolean image_url: type: - string - 'null' seller_warehouse_id: type: - string - 'null' can_receive_stock: type: boolean can_ship_parcel: type: boolean can_collect: type: boolean is_checkout_point: description: this field will be always true for warehouse_type = retail-store. type: boolean accepts_returns: type: boolean opening_hours: $ref: '#/components/schemas/OpeningHours' channels: description: channels associated with the warehouse type: array items: $ref: '#/components/schemas/SalesChannel' readOnly: true OpeningHours: type: object required: - monday - tuesday - wednesday - thursday - friday - saturday - sunday properties: monday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time tuesday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time wednesday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time thursday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time friday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time saturday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time sunday: type: - object - 'null' properties: opening_time: type: string format: time closing_time: type: string format: time required: - opening_time - closing_time SalesChannel: title: SalesChannel type: object required: - id - name - kind - active properties: id: type: string name: type: string readOnly: true kind: type: string enum: - storefront - marketplace active: type: boolean readOnly: true securitySchemes: Authorization: type: http scheme: bearer ````