> ## Documentation Index > Fetch the complete documentation index at: https://developers.lucca.fr/llms.txt > Use this file to discover all available pages before exploring further. # Create an export and retrieve export content > Create a new export and retrieve the export content directly in the response body for a given business-establishment. **In the v3 API model, the business-establishment is often called "legal-entity". As a result, the `legalEntityId` query parameter corresponds to the ID of a business-establishment.** The response contains all the exported entry lines for the given business-establishment. The date query parameters can operate comparisons with a given date-time value. For examples : - `?approvedOn=2021-01-01`: strict equality. - `?approvedOn=since,2021-01-01`: greater than or equal. - `?approvedOn=until,2021-01-01`: lower than or equal. - `?approvedOn=between,2021-01-01,2021-01-31`: comprised between two dates. ## OpenAPI ````yaml /openapi-specs/cleemy-expenses-v3.yaml post /cleemy/services/v3/createExpenseAccountingExport openapi: 3.1.0 info: title: Lucca Expenses version: '1.0' description: | Welcome on the documentation for the Lucca Expenses API. contact: name: API Support url: https://support.lucca.fr email: contact@luccasoftware.com license: name: Unlicensed url: https://www.luccasoftware.com servers: - url: https://{host} description: Your Lucca account URL. variables: host: default: example.ilucca.net description: >- The URL of your dedicated Lucca account: `{account}.{env}.{region}`. Account reflects your company name. Env indicates the environment. Region depends on your server location. **Please, use your test or sandbox environments (and not your production env.) for testing purposes.** Environments: - `ilucca`: production environment for customers. - `ilucca-test`: test environment for customers. - `ilucca-demo`: demo environment for prospects. Regions: - `.ch` for Swiss located accounts. - `.net` for the others. Regarding sandboxes, the pattern differs: `https://{account}-{sandboxName}.sandbox.{server}.luccasoftware.com`, where: - `{sandboxName}` is automatically generated upon creation. - `{server}` may be "eu1", "eu2" or "ch1". security: [] tags: - name: ExpenseTempItems description: Singular expenses. - name: ExpenseClaims description: Collection of expenses submitted for approval. - name: ExpenseClaimItems description: Expenses included in an expenseClaim - name: CreateExpenseAccountingExport description: Service used to create an export and retrieve the exported entry lines. paths: /cleemy/services/v3/createExpenseAccountingExport: parameters: - $ref: '#/components/parameters/Authorization' - name: legalEntityId in: query required: true description: >- ID of the business-establishment for which entry lines will be exported. schema: type: integer - name: accountingDate in: query required: false description: >- The `accountingDate` parameter is not used here as a filter, but to override the accounting date of the exported entry lines to a specific date. schema: type: string format: date - name: approvedOn in: query required: false description: '{comparator},{date-time}' schema: type: string - name: controlledOn in: query required: false description: '{comparator},{date-time}' schema: type: string post: tags: - CreateExpenseAccountingExport summary: Create an export and retrieve export content description: >- Create a new export and retrieve the export content directly in the response body for a given business-establishment. **In the v3 API model, the business-establishment is often called "legal-entity". As a result, the `legalEntityId` query parameter corresponds to the ID of a business-establishment.** The response contains all the exported entry lines for the given business-establishment. The date query parameters can operate comparisons with a given date-time value. For examples : - `?approvedOn=2021-01-01`: strict equality. - `?approvedOn=since,2021-01-01`: greater than or equal. - `?approvedOn=until,2021-01-01`: lower than or equal. - `?approvedOn=between,2021-01-01,2021-01-31`: comprised between two dates. operationId: post-create-expense-accounting-export responses: '200': description: The export file is successfully generated. content: application/octet-stream: schema: type: string description: Content of the export file. examples: exportExample: summary: Sample export file description: Example of an expense accounting export. value: > Accounting date;Journal;Account;Auxilliary;Analytic;Label;Exp. Num;Debit;Credit 31/01/2025;Exp;421000;421001;;Exp Richard Jules - 01/25;2186;0,00;267,47 31/01/2025;Exp;625600;;CC03;Exp Richard Jules - 01/25;2186;200,00;0,00 31/01/2025;Exp;625100;;CC02;Exp Richard Jules - 01/25;2186;67,47;0,00 10/02/2025;Exp;421000;421000;;Exp Alibert Chloe - 02/25;2194;0,00;63,43 10/02/2025;Exp;467000;;CC04;Exp Alibert Chloe - 02/25;2194;52,86;0,00 10/02/2025;Exp;445660;;CC04;Exp Alibert Chloe - 02/25;2194;10,57;0,00 '400': $ref: '#/components/responses/ResponseProblem' '401': $ref: '#/components/responses/ResponseProblem' '403': $ref: '#/components/responses/ResponseProblem' '500': $ref: '#/components/responses/ResponseProblem' components: parameters: Authorization: name: Authorization required: true description: 'API key. Value must be formatted like so: `lucca application={api_key}`.' in: header schema: type: string responses: ResponseProblem: description: Problem content: application/json: schema: type: object properties: Status: type: integer description: HTTP status code. example: 401 Message: type: string description: Human readable error message. example: Unauthorized ````