> ## Documentation Index > Fetch the complete documentation index at: https://developers.luccasoftware.com/llms.txt > Use this file to discover all available pages before exploring further. # Update a fixed item > Replace the data of a fixed item. Its nature cannot change, and its work contract can only change for another contract of the same employee. ## OpenAPI ````yaml /openapi-specs/pagga-remuneration.yaml put /remuneration/api/fixed-items/{id} openapi: 3.1.0 info: title: Lucca-Compensation version: '1.0' description: >- Welcome on the documentation for the Lucca Compensation API. Lucca Compensation is an online compensation management service that offers a complete picture of compensation structure (basic salary, variable compensation item, ...). contact: name: API Support url: https://www.luccasoftware.com email: no-reply@luccasoftware.com license: name: Apache 2.0 url: https://www.apache.org/licenses/LICENSE-2.0 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: fixed-nature description: Represents a type of remuneration that is fixed, i.e. does not vary. - name: fixed-nature-category description: Represents a category of fixed-nature. - name: variable-nature description: Represents a type of remuneration that varies. - name: variable-nature-category description: Represents a category of variable-natures. - name: RemunerationNatures description: Types of remuneration. - name: variable-item description: Represents a remuneration item of type "variable-nature". - name: fixed-item description: Represents a remuneration item of type "fixed-nature". paths: /remuneration/api/fixed-items/{id}: parameters: - $ref: '#/components/parameters/Authorization' - name: id in: path description: Unique identifier of the fixed item. required: true schema: type: integer format: int32 put: tags: - fixed-item summary: Update a fixed item description: >- Replace the data of a fixed item. Its nature cannot change, and its work contract can only change for another contract of the same employee. operationId: UpdateFixedItem requestBody: description: '' content: application/json: schema: $ref: '#/components/schemas/FixedItemPayload' responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/FixedItem' '400': description: Bad Request content: application/problem+json: schema: $ref: '#/components/schemas/ProblemDetails' '404': description: Not Found content: application/problem+json: schema: $ref: '#/components/schemas/ProblemDetails' '409': description: >- Conflict - the period overlaps another fixed item of the same nature on the same work contract. content: application/problem+json: schema: $ref: '#/components/schemas/ProblemDetails' 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 schemas: FixedItemPayload: type: object required: - amount - natureId - workContractId - amendmentId - periodStart properties: amount: type: number description: >- The amount of the fixed item, in the currency of the work contract's establishment for a monetary nature, a quantity otherwise. format: double example: 3000 natureId: type: integer description: >- Unique identifier of the fixed nature; it cannot change once the item exists. format: int32 example: 1 workContractId: type: integer description: Unique identifier of the employee's work contract. format: int32 example: 1481 amendmentId: type: integer description: >- Identifier of the work contract amendment; `0` for the original contract. format: int32 example: 0 comment: maxLength: 140 type: - string - 'null' description: >- A free comment explaining or justifying the fixed item, 140 characters at most. example: Annual salary review periodStart: type: string description: >- The first day on which the fixed item applies, returned as `startsOn`. format: date example: '2026-01-01' periodEnd: type: - string - 'null' description: >- The last day on which the fixed item applies, returned as `endsOn`; omit it for an open-ended item. format: date example: '2026-12-31' additionalProperties: false FixedItem: type: object properties: id: type: integer description: Unique identifier of the fixed remuneration item format: int32 amount: type: number description: "The amount of the fixed remuneration item.\r\nDepending on the nature of the fixed item, the amount can be either a quantity or a monetary value." format: double startsOn: type: string description: The first day on which the fixed remuneration item applies. format: date endsOn: type: - string - 'null' description: The last day on which the fixed remuneration item applies. format: date comment: type: - string - 'null' description: You can attach a comment to explain or justify the fixed item example: First-half salary increase natureId: type: integer description: The nature id of the fixed remuneration item format: int32 nature: allOf: - $ref: '#/components/schemas/FixedNature' description: The nature of the fixed remuneration item workContractId: type: integer description: A fixed item must be linked to a work contract. format: int32 workContract: allOf: - $ref: '#/components/schemas/AmendedWorkContract' description: The work contract linked to the fixed item. additionalProperties: false description: A fixed remuneration item ProblemDetails: type: object properties: type: type: - string - 'null' title: type: - string - 'null' status: type: - integer - 'null' format: int32 detail: type: - string - 'null' instance: type: - string - 'null' additionalProperties: {} FixedNature: type: object properties: id: type: integer description: An unique identifier for the fixed nature format: int32 name: maxLength: 50 minLength: 1 type: string description: The display name example: Basic salary category: anyOf: - $ref: '#/components/schemas/FixedNatureCategory' description: Fixed nature category - type: 'null' establishments: description: Establishments linked to the fixed nature type: - array - 'null' items: $ref: '#/components/schemas/Establishment' additionalProperties: false description: Fixed nature AmendedWorkContract: type: object properties: workContractId: type: integer description: "An amended work contract is defined both by the work contract and the amendment\r\nThis is the identifier of the work contract part" format: int32 amendmentId: type: integer description: "An amended work contract is defined both by the work contract and the amendment\r\nThis is the identifier of the amendment part" format: int32 ownerId: type: integer description: The identifier of the employee who owns the contract format: int32 owner: $ref: '#/components/schemas/AmendedWorkContractOwner' description: The employee who owns the work contract startsOn: type: string description: Start date of the contract format: date endsOn: type: - string - 'null' description: End date of the contract format: date additionalProperties: false FixedNatureCategory: type: object properties: id: type: integer description: An unique identifier for the fixed nature category format: int32 code: type: - string - 'null' description: An internal unique code identifying the category example: BASIC_SALARY additionalProperties: false description: Fixed nature category Establishment: type: object properties: id: type: integer description: An unique identifier for the establishment format: int32 name: type: string description: The display name example: Lucca FR currencyCode: type: string description: Currency code used in this establishment example: EUR currencySymbol: type: string description: Currency symbol used in this establishment example: € additionalProperties: false AmendedWorkContractOwner: required: - department - displayName - firstName - id - lastName - login - name type: object properties: id: type: integer description: Unique identifier of the user format: int32 firstName: type: string description: First name of the user lastName: type: string description: Last name of the user name: type: string description: Full name of the user displayName: type: string description: Display name of the user ```` ## Related topics - [List fixed items](https://developers.luccasoftware.com/api-reference/legacy/pagga-remuneration/fixed-items/list-fixed-items.md) - [Create a fixed item](https://developers.luccasoftware.com/api-reference/legacy/pagga-remuneration/fixed-items/create-fixed-item.md) - [Delete a fixed item](https://developers.luccasoftware.com/api-reference/legacy/pagga-remuneration/fixed-items/delete-fixed-item.md) - [The fixed-item resource](https://developers.luccasoftware.com/api-reference/legacy/pagga-remuneration/fixed-items/fixed-item.md) - [Update a variable-item](https://developers.luccasoftware.com/api-reference/legacy/pagga-remuneration/variable-items/update-variable-item.md)