> ## Documentation Index > Fetch the complete documentation index at: https://docs.tread.ai/llms.txt > Use this file to discover all available pages before exploring further. # Generate InvoiceLineItems for an Invoice for a Company > Generate `InvoiceLineItems` for an `Invoice` for a `Company` This endpoint only generates the `InvoiceLineItems` based on the inputs and does not store any data on the backend ## OpenAPI ````yaml /api-reference/openapi.json post /v1/companies/{company-id}/invoices/{invoice-id}/invoice_line_items/generate openapi: 3.0.3 info: title: Horizon API V1 version: '1.0' contact: name: Tread url: https://tread.io email: developers@tread.io description: >- This is the Version 1 implementation. When in doubt we default to the practices outlined [here](https://www.vinaysahni.com/best-practices-for-a-pragmatic-restful-api#advanced-queries) license: name: Private url: https://tread.io servers: - description: production url: https://api.tread-horizon.com security: - bearerAuth: [] tags: - name: Projects - name: Orders - name: Loads - name: Jobs - name: JobAssignments - name: ApprovalAssignments - name: Equipment - name: FuelSurcharges - name: Materials - name: Accounts - name: Tickets - name: Users - name: Sites - name: Companies - name: Departments - name: Rates - name: Services - name: EquipmentType - name: FileAttachments - name: MaterialType - name: LineItemType - name: DriverStateEvent - name: Authentication - name: IamRoles - name: Typeaheads - name: Integrations - name: Reflection - name: LoadCycles - name: AddOns - name: ServiceClass - name: Invoices - name: JobSummaries - name: LoadSummaries - name: CompanyShares - name: UserDevicePermission - name: Drivers - name: Settlements - name: LocationHistories - name: Telematics - name: OmniReports - name: DriverDays - name: Agave - name: AddOnCharges - name: ResourceUsageLogs - name: ResourceScopes - name: TravelledDistances - name: MaterialRates - name: CompanyDayJobStats - name: KMLFiles - name: AutoAddOnAssignments - name: SiteRateSchedules - name: TwilioIntegrations - name: Foremen - name: AccountExternalTruckIdentifier - name: GeofenceTriggers - name: Labels - name: Compliance - name: ComplianceDocuments paths: /v1/companies/{company-id}/invoices/{invoice-id}/invoice_line_items/generate: parameters: - schema: type: string format: uuid name: company-id in: path required: true description: Company ID - schema: type: string name: invoice-id in: path required: true description: Invoice ID - $ref: '#/components/parameters/Accept-Language' post: tags: - Invoices summary: Generate InvoiceLineItems for an Invoice for a Company description: >- Generate `InvoiceLineItems` for an `Invoice` for a `Company` This endpoint only generates the `InvoiceLineItems` based on the inputs and does not store any data on the backend operationId: >- post-v1-companies-company-id-invoices-invoice-id-invoice_line_items-generate requestBody: content: application/json: schema: type: object required: - rate_value - rate_type properties: rate_value: type: number x-stoplight: id: w5z08oggi7syq-company rate_type: $ref: '#/components/schemas/RateType' responses: '200': description: OK headers: {} content: application/json: schema: type: object required: - data properties: data: type: array x-stoplight: id: pgnb7ip6q7u9m-company items: $ref: '#/components/schemas/InvoiceLineItem-Read-Generated' '400': $ref: '#/components/responses/Error' '401': $ref: '#/components/responses/UnauthenticatedError' '403': $ref: '#/components/responses/Error' '404': $ref: '#/components/responses/Error' '406': $ref: '#/components/responses/Error' '415': $ref: '#/components/responses/Error' '422': $ref: '#/components/responses/ModelError' components: parameters: Accept-Language: name: Accept-Language in: header schema: type: string default: en example: en description: >- The Accept-Language request HTTP header indicates the natural language and locale that the client prefers. schemas: RateType: title: RateType x-stoplight: id: zn2jb7gsifkk3 enum: - RatePerHour - RatePerDay - RatePerLoad - RatePerTon - RatePerTonne - RatePerYard - RatePerBushel - RateCommission - RateFlatCommission - RateFlatRate example: RatePerHour InvoiceLineItem-Read-Generated: title: InvoiceLineItem-Read-Generated x-stoplight: id: oi6xodq6h2g0x type: object x-internal: true required: - quantity - delivered_quantity - rate - rate_type - total_amount - pay_start_time - pay_end_time - invoice_id - name - line_item_type properties: quantity: type: string x-stoplight: id: v1ewx0tm9mbq1 delivered_quantity: type: string x-stoplight: id: 2l55holcsio85 rate: type: string x-stoplight: id: 7x4itpvkhp1mj rate_type: $ref: '#/components/schemas/RateType' total_amount: type: string x-stoplight: id: dhenpl6eyi2h6 pay_start_time: type: string x-stoplight: id: 3u2nmiaxy8nov format: date-time nullable: true pay_end_time: type: string x-stoplight: id: tf570leo8xrqi format: date-time nullable: true invoice_id: type: string x-stoplight: id: kfggtxandaa90 format: uuid name: type: string x-stoplight: id: rf66wutpde5q9 nullable: true load_id: type: string x-stoplight: id: 9ity0xphx2q9o format: uuid nullable: true line_item_type: $ref: '#/components/schemas/InvoiceLineItemType' additionalProperties: false InvoiceLineItemType: title: InvoiceLineItemType x-stoplight: id: clkyxnscmds4j enum: - InvoiceLineItem - MaterialRateLineItem - FreightRateLineItem default: InvoiceLineItem Error-Response: title: Error-Response x-stoplight: id: 52cydhphee3qe type: object required: - error properties: error: $ref: '#/components/schemas/Error' additionalProperties: false UnauthenticatedError-Response: title: UnauthenticatedError-Response x-stoplight: id: o477eph7ttbzt type: object required: - error properties: error: $ref: '#/components/schemas/UnauthenticatedError' additionalProperties: false ModelError-Response: title: ModelError-Response x-stoplight: id: payf9ndh3l6np type: object required: - error properties: error: $ref: '#/components/schemas/ModelError' additionalProperties: false Error: title: Error x-stoplight: id: 3g57kkik3l464 type: object description: An Error. required: - code properties: code: type: string x-stoplight: id: 7o9x1t8v0bgfo additionalProperties: false UnauthenticatedError: title: UnauthenticatedError x-stoplight: id: 202o69l0fs40h allOf: - $ref: '#/components/schemas/Error' - type: object x-stoplight: id: tg10dt7s0l6bw properties: error_type: type: string x-stoplight: id: wvq8c0qsym4hz required: - error_type ModelError: title: ModelError x-stoplight: id: nhp6714o4j1qt description: A Model-specific error allOf: - $ref: '#/components/schemas/Error' - type: object required: - errors properties: errors: type: array x-stoplight: id: m4ul9vcq2deh6 items: $ref: '#/components/schemas/ModelError-Item' ModelError-Item: title: ModelError-Item x-stoplight: id: b93chwval2t8d type: object required: - model - field - message properties: model: type: string x-stoplight: id: 30myfyjkno8ao description: The Model associated with this Error field: type: string x-stoplight: id: 8gl4ed3uxhdws description: The field associated with this Error message: type: string x-stoplight: id: bmgbrtmw17qsj description: The Error message additionalProperties: false responses: Error: description: Error response content: application/json: schema: $ref: '#/components/schemas/Error-Response' type: object UnauthenticatedError: description: Example response content: application/json: schema: $ref: '#/components/schemas/UnauthenticatedError-Response' type: object ModelError: description: '' content: application/json: schema: $ref: '#/components/schemas/ModelError-Response' type: object securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT ````