> ## Documentation Index > Fetch the complete documentation index at: https://nayax-44d6e37b-docs-marshall-faq-redistribution.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Update Pick List > Updates the pick list for a specific machine, allowing changes to the quantity of products to be picked. ## OpenAPI ````yaml /openapi/lynx.yaml put /v1/machines/inventory/picklists/update openapi: 3.0.1 info: title: Nayax Operational Lynx API version: v1 servers: - url: https://qa-lynx.nayax.com/operational security: - Authorization: [] paths: /v1/machines/inventory/picklists/update: put: tags: - Machine Inventory summary: Update Pick List description: >- Updates the pick list for a specific machine, allowing changes to the quantity of products to be picked. operationId: update-pick-list requestBody: content: application/json: schema: type: array items: $ref: '#/components/schemas/PickListLynxModelRequest' responses: '200': description: The pick list was successfully updated. content: application/json: schema: type: array items: $ref: '#/components/schemas/PickListLynxModelResponse' components: schemas: PickListLynxModelRequest: type: object description: >- Represents a request to update the pick list for a machine, including the machine ID and the products to be updated. properties: MachineId: type: integer format: int64 description: >- The unique identifier of the machine whose pick list is being updated. Products: type: array items: $ref: '#/components/schemas/PickListProductLynxModelRequest' nullable: true description: A list of products to be updated in the pick list. additionalProperties: false PickListLynxModelResponse: type: object description: >- Represents the response after updating the pick list for a machine, including the machine ID and the updated products. properties: MachineID: type: integer format: int64 nullable: true description: The unique identifier of the machine whose pick list was updated. Products: type: array items: $ref: '#/components/schemas/PickListProductLynxModelResponse' nullable: true description: A list of products in the updated pick list. additionalProperties: false PickListProductLynxModelRequest: type: object description: >- Represents a product in the pick list update request, including the product ID and the quantity to be picked. properties: MachineProductId: type: integer format: int64 description: The unique identifier of the product in the machine. PickQty: type: integer format: int32 nullable: true description: The quantity of the product to be picked. additionalProperties: false PickListProductLynxModelResponse: type: object description: >- Represents a product in the response after updating the pick list, including detailed product information and stock levels. properties: NayaxProductID: type: integer format: int64 nullable: true description: The unique identifier of the product in the Nayax system. MachineProductID: type: integer format: int64 nullable: true description: The unique identifier of the product in the machine. ProductID: type: string nullable: true description: The unique identifier of the product. MDBCode: type: integer format: int64 nullable: true description: The MDB (Multi-Drop Bus) code associated with the product. PACode: type: string nullable: true description: The PA code associated with the product. SelectionID: type: string nullable: true description: The selection identifier for the product within the machine. OperatorButtonCode: type: string nullable: true description: The code used by operators for manual selections. PAR: type: integer format: int32 nullable: true description: >- The PAR level, indicating the standard quantity of the product that should be stocked in the machine. MissingStock: type: integer format: int32 nullable: true description: The quantity of stock that is missing from the machine. OnHandStock: type: integer format: int32 nullable: true description: The quantity of stock currently on hand in the machine. VendOutAlertThreshold: type: integer format: int32 nullable: true description: >- The stock level at which an alert should be triggered for potential vend out. MachinePrice: type: number format: double nullable: true description: The price of the product as set on the machine. CreditCardPrice: type: number format: double nullable: true description: The price of the product when purchased with a credit card. RetailPrice: type: number format: double nullable: true description: The retail price of the product. DEXPrice: type: number format: double nullable: true description: The price of the product according to DEX (Data Exchange) data. LastPickQTY: type: integer format: int32 nullable: true description: >- The quantity of the product that was picked during the last restocking. PrePaidCardPrice: type: number format: double nullable: true description: The price of the product when purchased with a prepaid card. CashPrice: type: number format: double nullable: true description: The price of the product when purchased with cash. DEXProductName: type: string nullable: true description: The product name according to DEX data. ProductName: type: string nullable: true description: The name of the product. SalesSourceID: type: integer format: int32 nullable: true description: The identifier for the source of sales data. AmountInTray: type: integer format: int32 nullable: true description: The quantity of the product currently in the tray. GroupId: type: integer format: int32 nullable: true description: The group identifier associated with the product. additionalProperties: false securitySchemes: Authorization: type: http scheme: bearer description: Enter your Bearer token. It's required to authenticate API requests. ````