> ## Documentation Index > Fetch the complete documentation index at: https://docs.aiinsurance.io/llms.txt > Use this file to discover all available pages before exploring further. # Set Submission Loss History > Replaces the entire loss history on a submission. The request body contains an array of loss history entries — any previously stored entries are overwritten. Unknown fields are rejected with a 400 error. For FMV1-enabled companies, setting loss history automatically recomputes computed loss history aggregation fields on all quotes attached to the submission. **Required permission:** `submission:update` ## OpenAPI ````yaml /openapi/generated-external-api.yaml put /api/external/companies/{companyId}/submissions/{submissionId}/loss-history openapi: 3.0.3 info: title: AI Insurance External API description: External API for AI Insurance platform version: 1.0.0 contact: email: support@aiinsurance.io servers: - url: https://app.aiinsurance.io description: Production security: - ApiKeyAuth: [] paths: /api/external/companies/{companyId}/submissions/{submissionId}/loss-history: put: tags: - Submissions summary: Set Submission Loss History description: | Replaces the entire loss history on a submission. The request body contains an array of loss history entries — any previously stored entries are overwritten. Unknown fields are rejected with a 400 error. For FMV1-enabled companies, setting loss history automatically recomputes computed loss history aggregation fields on all quotes attached to the submission. **Required permission:** `submission:update` operationId: setSubmissionLossHistory parameters: - $ref: '#/components/parameters/companyId' - $ref: '#/components/parameters/submissionIdPath' requestBody: required: true content: application/json: schema: type: object required: - history properties: history: type: array description: >- Loss history entries. Send an empty array to clear all loss history. items: $ref: '#/components/schemas/LossHistoryEntry' examples: singleEntry: summary: Single loss history entry value: history: - year: 2022 data: company: Acme Insurance Co policyNumber: POL-2022-001 policyPremium: 10000 totalIncurred: 10000 indemnityPaid: 5000 expensesPaid: 2000 totalReserves: 3000 claimDescription: Slip and fall at insured premises reportDate: '2022-06-20T00:00:00.000Z' clearHistory: summary: Clear all loss history value: history: [] responses: '200': description: Loss history saved successfully. content: application/json: schema: type: object required: - success properties: success: type: boolean example: true examples: success: summary: Successful save value: success: true '400': description: Bad Request — Validation error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: invalidHistory: summary: Missing required field value: error: code: ValidationError message: history[0].data.totalIncurred is required unknownField: summary: Unknown field in request value: error: code: UnknownFields message: 'history[0].data: Unknown field(s): bogusField' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': description: Submission not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: notFound: summary: Submission does not exist value: error: code: NotFound message: Submission not found '500': $ref: '#/components/responses/InternalServerError' components: parameters: companyId: name: companyId in: path required: true schema: type: string format: uuid description: Company identifier submissionIdPath: name: submissionId in: path required: true schema: type: string format: uuid description: Submission identifier schemas: LossHistoryEntry: type: object description: >- A single loss history entry representing a claim or loss event for a given policy year. required: - year - data properties: year: type: integer description: The policy year this loss entry belongs to. example: 2022 data: type: object description: Claim/loss details for this entry. required: - totalIncurred properties: company: type: string description: Insurance company name. example: Acme Insurance Co policyNumber: type: string description: Policy number associated with this loss. example: POL-2022-001 policyPremium: type: number description: Premium for the policy period. example: 10000 policyEffectiveDate: type: string format: date-time description: Policy effective date (ISO 8601). example: '2022-01-01T00:00:00.000Z' policyExpirationDate: type: string format: date-time description: Policy expiration date (ISO 8601). example: '2023-01-01T00:00:00.000Z' indemnityPaid: type: number description: Indemnity amount paid. example: 5000 expensesPaid: type: number description: Expenses (ALAE) paid. example: 2000 totalReserves: type: number description: Total reserves. example: 3000 totalIncurred: type: number description: Total incurred amount (required). example: 10000 coverageType: type: string description: Type of coverage. example: General Liability claimDescription: type: string description: Description of the claim. example: Slip and fall at insured premises claimNumber: type: string description: Claim number. example: CLM-2022-001 eventDate: type: string format: date-time description: Date the loss event occurred (ISO 8601). example: '2022-06-15T00:00:00.000Z' reportDate: type: string format: date-time description: Date the claim was reported (ISO 8601). example: '2022-06-20T00:00:00.000Z' indemnityReserve: type: number description: Indemnity reserve amount. example: 1000 alaeReserve: type: number description: ALAE (Allocated Loss Adjustment Expense) reserve amount. example: 2000 ErrorResponse: type: object description: Standard error response for all external API endpoints required: - error properties: error: type: object required: - code - message properties: code: type: string description: Machine-readable error code example: VALIDATION_ERROR message: type: string description: Human-readable error message example: 'submissionId: Required field is missing' details: type: array description: Additional details for validation errors (field-level errors) items: type: object properties: field: type: string description: The field that caused the error example: submissionId message: type: string description: Description of the field error example: Required field is missing responses: Unauthorized: description: Unauthorized - Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: missingApiKey: summary: Missing API key value: error: code: UNAUTHORIZED message: Authorization header is required bearerTokenNotAllowed: summary: Bearer token used instead of API key value: error: code: UNAUTHORIZED message: External API endpoints require API key authentication Forbidden: description: Forbidden - Insufficient permissions content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: insufficientPermissions: summary: Insufficient permissions value: error: code: FORBIDDEN message: Insufficient permissions to perform this action InternalServerError: description: Internal Server Error - Unexpected error occurred content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: internalError: summary: Unexpected server error value: error: code: INTERNAL_ERROR message: An unexpected error occurred. Please try again later. securitySchemes: ApiKeyAuth: type: apiKey in: header name: Authorization description: >- API key authentication. Include your API key in the Authorization header. ````