> ## Documentation Index > Fetch the complete documentation index at: https://absentify.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Update a rule assignment > Updates an existing rule assignment. You can change the date range or reassign to a different rule. Date ranges must not overlap with other assignments. ## OpenAPI ````yaml https://api.absentify.com/api/v1/openapi.json patch /rule-assignments/{id} openapi: 3.1.0 info: title: absentify CRUD API description: OpenAPI compliant REST API version: 1.0.0 servers: - url: https://api.absentify.com/api/v1 security: [] tags: - name: Departments - name: Leave types - name: Members - name: Requests - name: Public holidays - name: Workspace - name: Absences - name: Allowance Management externalDocs: url: https://absentify.com/docs/en/api-reference paths: /rule-assignments/{id}: patch: tags: - Allowance Management summary: Update a rule assignment description: >- Updates an existing rule assignment. You can change the date range or reassign to a different rule. Date ranges must not overlap with other assignments. operationId: allowanceRule-updateAssignment parameters: - in: path name: id schema: type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: true requestBody: required: true content: application/json: schema: type: object properties: rule_start_date: description: First day the rule applies (inclusive). type: string pattern: ^\d{4}-\d{2}-\d{2}$ rule_end_date: description: >- Last day the rule applies (inclusive), or null for open-ended. Omit the field to leave the current end date unchanged. anyOf: - type: string pattern: ^\d{4}-\d{2}-\d{2}$ - type: 'null' rule_id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ reason: type: string minLength: 3 maxLength: 500 description: >- Why this assignment is being changed — stored in the rule audit log. required: - reason responses: '200': description: Successful response content: application/json: schema: type: object properties: success: type: boolean required: - success additionalProperties: false '400': description: Invalid input data content: application/json: schema: $ref: '#/components/schemas/error.BAD_REQUEST' '401': description: Authorization not provided content: application/json: schema: $ref: '#/components/schemas/error.UNAUTHORIZED' '403': description: Insufficient access content: application/json: schema: $ref: '#/components/schemas/error.FORBIDDEN' '404': description: Not found content: application/json: schema: $ref: '#/components/schemas/error.NOT_FOUND' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/error.INTERNAL_SERVER_ERROR' security: - ApiKey: [] components: schemas: error.BAD_REQUEST: type: object properties: message: type: string description: The error message example: Invalid input data code: type: string description: The error code example: BAD_REQUEST issues: description: An array of issues that were responsible for the error example: [] type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false title: Invalid input data error (400) description: The error information example: code: BAD_REQUEST message: Invalid input data issues: [] error.UNAUTHORIZED: type: object properties: message: type: string description: The error message example: Authorization not provided code: type: string description: The error code example: UNAUTHORIZED issues: description: An array of issues that were responsible for the error example: [] type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false title: Authorization not provided error (401) description: The error information example: code: UNAUTHORIZED message: Authorization not provided issues: [] error.FORBIDDEN: type: object properties: message: type: string description: The error message example: Insufficient access code: type: string description: The error code example: FORBIDDEN issues: description: An array of issues that were responsible for the error example: [] type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false title: Insufficient access error (403) description: The error information example: code: FORBIDDEN message: Insufficient access issues: [] error.NOT_FOUND: type: object properties: message: type: string description: The error message example: Not found code: type: string description: The error code example: NOT_FOUND issues: description: An array of issues that were responsible for the error example: [] type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false title: Not found error (404) description: The error information example: code: NOT_FOUND message: Not found issues: [] error.INTERNAL_SERVER_ERROR: type: object properties: message: type: string description: The error message example: Internal server error code: type: string description: The error code example: INTERNAL_SERVER_ERROR issues: description: An array of issues that were responsible for the error example: [] type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false title: Internal server error error (500) description: The error information example: code: INTERNAL_SERVER_ERROR message: Internal server error issues: [] securitySchemes: ApiKey: type: apiKey name: X-API-KEY in: header ````