> ## Documentation Index > Fetch the complete documentation index at: https://docs-beta.layerfi.com/llms.txt > Use this file to discover all available pages before exploring further. # Update trip > Partially updates a trip. Only provided fields will be updated. ## OpenAPI ````yaml patch /v1/businesses/{businessId}/mileage/trips/{tripId} openapi: 3.0.1 info: title: API version: latest servers: [] security: - BearerAuth: [] tags: [] externalDocs: url: / paths: /v1/businesses/{businessId}/mileage/trips/{tripId}: patch: tags: [] summary: Update trip description: Partially updates a trip. Only provided fields will be updated. operationId: business.mileage.trips.tripId.patch parameters: - name: businessId in: path description: The UUID of the business required: true schema: type: string format: uuid - name: tripId in: path description: The UUID of the trip required: true schema: type: string format: uuid - name: Content-Type in: header description: Content-Type must be set to application/json schema: type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/PatchTripParams' responses: '200': description: The updated trip headers: {} content: application/json: schema: $ref: '#/components/schemas/ApiTrip' '400': description: Invalid request parameters content: application/json: schema: $ref: '#/components/schemas/ApiError' '404': description: Business or trip not found content: application/json: schema: $ref: '#/components/schemas/ApiError' deprecated: false components: schemas: PatchTripParams: type: object properties: vehicle_id: type: string format: uuid description: The UUID of the vehicle used for this trip external_id: type: string nullable: true description: An optional external identifier for the trip distance: type: string description: The distance traveled in miles, as a decimal string trip_date: type: string format: date description: The date of the trip (YYYY-MM-DD) purpose: $ref: '#/components/schemas/TripPurpose' description: The purpose classification of the trip start_address: type: string nullable: true description: The starting address of the trip end_address: type: string nullable: true description: The ending address of the trip description: type: string nullable: true description: An optional description or notes about the trip description: All fields are optional. Only provided fields will be updated. ApiTrip: type: object properties: id: type: string format: uuid description: The unique identifier of the trip vehicle: $ref: '#/components/schemas/ApiVehicle' description: The vehicle used for this trip external_id: type: string nullable: true description: An optional external identifier for the trip, used for idempotency distance: type: string description: The distance traveled in miles, as a decimal string trip_date: type: string format: date description: The date of the trip (YYYY-MM-DD) purpose: $ref: '#/components/schemas/TripPurpose' description: The purpose classification of the trip start_address: type: string nullable: true description: The starting address of the trip end_address: type: string nullable: true description: The ending address of the trip description: type: string nullable: true description: An optional description or notes about the trip mileage_deduction_rate: type: string description: >- The IRS standard mileage rate in cents per mile applicable for the trip date estimated_deduction: type: integer format: int64 description: >- The estimated tax deduction in cents. Only calculated for BUSINESS trips; returns 0 for PERSONAL and UNREVIEWED trips. created_at: type: string format: date-time description: Timestamp when the trip was created updated_at: type: string format: date-time description: Timestamp when the trip was last updated deleted_at: type: string format: date-time nullable: true description: Timestamp when the trip was deleted, or null if not deleted required: - id - vehicle - distance - trip_date - purpose - mileage_deduction_rate - estimated_deduction - created_at - updated_at ApiError: type: object properties: {} example: '' description: '' TripPurpose: type: string enum: - UNREVIEWED - BUSINESS - PERSONAL description: >- The purpose classification of a trip. UNREVIEWED indicates the trip has not been categorized yet, BUSINESS indicates a business-related trip eligible for mileage deduction, and PERSONAL indicates a personal trip not eligible for deduction. ApiVehicle: type: object properties: id: type: string format: uuid description: The unique identifier of the vehicle business_id: type: string format: uuid description: The UUID of the business this vehicle belongs to external_id: type: string nullable: true description: >- An optional external identifier for the vehicle, used for idempotency make_and_model: type: string description: The make and model of the vehicle (e.g., 'Toyota Camry') year: type: integer description: The model year of the vehicle license_plate: type: string nullable: true description: The license plate number of the vehicle vin: type: string nullable: true description: The Vehicle Identification Number (VIN) description: type: string nullable: true description: An optional description or notes about the vehicle is_primary: type: boolean description: >- Whether this is the primary vehicle for the business. Only one vehicle can be primary at a time. is_eligible_for_deletion: type: boolean description: >- Whether the vehicle can be deleted. A vehicle cannot be deleted if it has trips or is archived. created_at: type: string format: date-time description: Timestamp when the vehicle was created updated_at: type: string format: date-time description: Timestamp when the vehicle was last updated archived_at: type: string format: date-time nullable: true description: Timestamp when the vehicle was archived, or null if not archived deleted_at: type: string format: date-time nullable: true description: Timestamp when the vehicle was deleted, or null if not deleted required: - id - business_id - make_and_model - year - is_primary - is_eligible_for_deletion - created_at - updated_at securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: JWT ````