> ## Documentation Index > Fetch the complete documentation index at: https://docs.light.inc/llms.txt > Use this file to discover all available pages before exploring further. # Get invoice payable line item > Gets an invoice payable line item ## OpenAPI ````yaml /openapi-public.json get /v1/invoice-payables/{invoicePayableId}/line-items/{lineItemId} openapi: 3.0.1 info: title: Light API version: 1.0.0 servers: [] security: - apiKeyAuth: [] - bearerAuth: [] paths: /v1/invoice-payables/{invoicePayableId}/line-items/{lineItemId}: get: tags: - v1 - Invoice Payables summary: Get invoice payable line item description: Gets an invoice payable line item operationId: getInvoicePayableLineItem parameters: - name: invoicePayableId in: path required: true schema: type: string format: uuid - name: lineItemId in: path required: true schema: type: string format: uuid responses: default: description: default response content: application/json;charset=UTF-8: schema: $ref: '#/components/schemas/ExternalInvoicePayableLineItemV1Model' components: schemas: ExternalInvoicePayableLineItemV1Model: type: object properties: id: type: string description: ID of the invoice payable line item. format: uuid invoicePayableId: type: string description: ID of the invoice payable this line item belongs to. format: uuid type: type: string description: >- Type of the invoice payable line item (vendor invoice or reimbursement). ⚠️ This enum is not exhaustive; new values may be added in the future. nullable: false deprecated: false enum: - REIMBURSEMENT - VENDOR_INVOICE metadata: $ref: '#/components/schemas/ExternalInvoicePayableLineItemMetadataV1Model' amount: type: integer description: >- Amount in cents, including tax. When `lineItemsIncludeTax` is true, `amount` represents the full tax-inclusive amount for this line. format: int64 nullable: true netAmount: type: integer description: >- Net line amount in cents, excluding tax. When `lineItemsIncludeTax` is false, `netAmount` represents the base amount on which tax is calculated. format: int64 nullable: true description: type: string description: Description of this invoice payable line item. nullable: true taxCodeId: type: string description: ID of the tax code applied to this line item. format: uuid nullable: true taxAmount: type: integer description: Tax amount in cents for this line item. format: int64 nullable: true accountId: type: string description: ID of the ledger account used to book this line item. format: uuid nullable: true costCenterId: type: string description: ID of the cost center associated with this line item, if applicable. format: uuid nullable: true amortizationStartDate: type: string description: Start date for amortization of this line item. format: date nullable: true amortizationEndDate: type: string description: End date for amortization of this line item. format: date nullable: true amortizationTemplateId: type: string description: >- ID of the amortization template to use for this line item within Light Ledger. format: uuid nullable: true customPropertiesOld: $ref: '#/components/schemas/ExternalCustomPropertiesObjectValuesV1Model' aiValueSuggestions: type: array description: >- AI-generated suggestions for line item values (e.g. account, cost center, tax code). nullable: true items: $ref: '#/components/schemas/ExternalAiValueSuggestionV1Model' customProperties: type: array description: Custom properties set on this invoice payable line item. nullable: true items: $ref: '#/components/schemas/ExternalCustomPropertyV1Model' createdAt: type: string description: Timestamp when this invoice payable line item was created. format: date-time updatedAt: type: string description: Timestamp when this invoice payable line item was last updated. format: date-time ExternalInvoicePayableLineItemMetadataV1Model: type: object properties: type: type: string description: >- Type of the invoice payable line item (vendor invoice or reimbursement). ⚠️ This enum is not exhaustive; new values may be added in the future. nullable: false deprecated: false enum: - REIMBURSEMENT - VENDOR_INVOICE description: >- Metadata for the invoice payable line item (ERP-specific fields and context). discriminator: propertyName: type ExternalCustomPropertiesObjectValuesV1Model: type: object properties: items: type: object additionalProperties: $ref: '#/components/schemas/ExternalPropertyObjectValueV1Model' description: >- Legacy container for custom properties on this line item (deprecated/old format). nullable: true ExternalAiValueSuggestionV1Model: type: object properties: field: type: string fieldValues: type: array items: type: string reasoning: type: string description: >- AI-generated suggestions for line item values (e.g. account, cost center, tax code). nullable: true ExternalCustomPropertyV1Model: type: object properties: groupId: type: string description: ID of the custom property group format: uuid groupInternalName: type: string description: Internal name of the custom property group values: type: array description: >- List of values. Note that this will be a single value unless the group input type supports multiple values items: $ref: '#/components/schemas/ExternalCustomPropertyValueV1Model' description: Custom properties set on the vendor. nullable: true ExternalPropertyObjectValueV1Model: type: object properties: propertyId: type: string format: uuid value: type: string valueId: type: string format: uuid ExternalCustomPropertyValueV1Model: type: object properties: id: type: string description: Unique identifier for the object format: uuid groupId: type: string description: ID of the custom property group format: uuid groupInternalName: type: string description: Internal name of the custom property group companyId: type: string description: ID of the company format: uuid internalName: type: string description: Internal name of the custom property value label: type: string description: Label of the custom property value context: type: string description: Context/description of the custom property value nullable: true createdAt: type: string description: Timestamp when the custom property value was created format: date-time updatedAt: type: string description: Timestamp when the custom property value was last updated format: date-time description: >- List of values. Note that this will be a single value unless the group input type supports multiple values securitySchemes: apiKeyAuth: type: apiKey description: >- Basic authentication header of the form **Basic** ****, where **** is your api key. name: Authorization in: header bearerAuth: type: http scheme: bearer bearerFormat: JWT ````