> ## 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. # Move a member to another rule > Ends the member's current assignment on `valid_from` and starts the new rule on the same day, in one transaction. Prefer this over deleting and recreating assignments: it leaves neither a gap nor an overlap, and records the move as a single audit entry. A `valid_until` is only accepted on the day before the next assignment starts or on the member's last employment day, so send null when nothing follows. Gaps or overlaps that predate this rule are tolerated, but the move may not widen them. ## OpenAPI ````yaml https://api.absentify.com/api/v1/openapi.json post /members/{member_id}/rule-change 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 - name: Out of office externalDocs: url: https://absentify.com/docs/en/api-reference paths: /members/{member_id}/rule-change: post: tags: - Allowance Management summary: Move a member to another rule description: >- Ends the member's current assignment on `valid_from` and starts the new rule on the same day, in one transaction. Prefer this over deleting and recreating assignments: it leaves neither a gap nor an overlap, and records the move as a single audit entry. A `valid_until` is only accepted on the day before the next assignment starts or on the member's last employment day, so send null when nothing follows. Gaps or overlaps that predate this rule are tolerated, but the move may not widen them. operationId: allowanceRule-changeMemberRule parameters: - in: path name: member_id schema: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$ required: true requestBody: required: true content: application/json: schema: type: object properties: current_assignment_id: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: >- The assignment being replaced, from GET /members/{member_id}/rule-assignments. rule_id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$ description: The rule to move the member to. allowance_type_id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$ valid_from: description: >- First day the new rule applies (inclusive), in YYYY-MM-DD format. Must be after the current assignment's start date. type: string pattern: ^\d{4}-\d{2}-\d{2}$ valid_until: description: >- Last day the new rule applies (inclusive), in YYYY-MM-DD format, or null for open-ended. To cover the member through 2026-08-31, send 2026-08-31. anyOf: - type: string pattern: ^\d{4}-\d{2}-\d{2}$ - type: 'null' reason: type: string minLength: 3 maxLength: 500 description: >- Why the member is being moved — stored in the rule audit log. required: - current_assignment_id - rule_id - allowance_type_id - valid_from - 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' '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.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 ````