> ## Documentation Index > Fetch the complete documentation index at: https://docs.voucherify.io/llms.txt > Use this file to discover all available pages before exploring further. # Batch assign/unassign tier structures > ⚠️ **BETA endpoint** This is a work-in-progress documentation of a BETA endpoint. The parameters, fields, request and response bodies, and other data may subject to change. If you want to share feedback or improvements, contact Voucherify support or your Technical Account Manager. Assigns and/or unassigns tier structures to/from a program in a single batch. Unassign operations require the program to be in DRAFT status. ## OpenAPI ````yaml /openapi/loyalties-v2.json post /v2/loyalties/programs/{id}/tier-structures/batch openapi: 3.1.0 info: title: Voucherify Loyalty v2 API version: 2.0.0 description: >- Complete API documentation for Voucherify Loyalty v2 system. Requires LOYALTY_V2 feature flag. servers: - url: https://api.voucherify.io description: Production security: - bearerAuth: [] X-App-Id: [] X-App-Token: [] tags: - name: Card Definitions description: >- CRUD operations, lifecycle management, and activity history for card definitions. Card definitions describe the configuration for loyalty cards, including code generation, points expiration, earning/spending limits, pending points, refunds, and balance settings. - name: Programs description: >- Loyalty program CRUD, lifecycle management, program-scoped resource assignments (card definitions, earning rules, rewards, tier structures), member management (create, list, get, activate, deactivate, delete), card operations (points adjustment, pending points, expiring points, transactions), reward purchases, and activity history. - name: Earning Rules description: >- Manage earning rules that define how customers earn points or receive incentives based on triggers (events, segments, custom events). Includes CRUD, lifecycle, and activity history. - name: Tier Structures description: >- CRUD operations, lifecycle management, and activity history for tier structures. Includes nested tier definitions (create, list, update, delete) within tier structures. Tier structures define the tiering model for loyalty programs — how members qualify for and move between tiers. - name: Incentives description: >- Manage incentive definitions (fixed points, proportional points, material, digital). Includes CRUD, lifecycle transitions, and activity history. - name: Rewards description: >- CRUD, lifecycle operations, and activity history for reward definitions. Rewards can be material (product/SKU) or digital (discount coupons, gift vouchers). - name: Examine description: Examines the earning of loyalty points for a loyalty program member. paths: /v2/loyalties/programs/{id}/tier-structures/batch: post: tags: - Programs - Programs summary: Batch assign/unassign tier structures description: > ⚠️ **BETA endpoint** This is a work-in-progress documentation of a BETA endpoint. The parameters, fields, request and response bodies, and other data may subject to change. If you want to share feedback or improvements, contact Voucherify support or your Technical Account Manager. Assigns and/or unassigns tier structures to/from a program in a single batch. Unassign operations require the program to be in DRAFT status. operationId: batchProcessTierStructures parameters: - $ref: '#/components/parameters/ProgramId' requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/TierStructuresBatchRequest' responses: '200': description: Batch processing result content: application/json: schema: $ref: '#/components/schemas/TierStructuresBatchResponse' '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' '409': $ref: '#/components/responses/Conflict' '500': $ref: '#/components/responses/InternalServerError' components: parameters: ProgramId: name: id in: path required: true description: Unique program identifier schema: type: string pattern: ^lprg_[a-f0-9]+$ schemas: TierStructuresBatchRequest: type: object properties: assign: type: - array - 'null' items: $ref: '#/components/schemas/TierStructureAssignRef' maxItems: 10 description: Tier structures to assign unassign: type: - array - 'null' items: $ref: '#/components/schemas/TierStructureUnassignRef' maxItems: 10 description: Tier structures to unassign additionalProperties: false TierStructuresBatchResponse: type: object properties: assigned: type: - array - 'null' items: $ref: '#/components/schemas/ProgramTierStructureDTO' description: Successfully assigned tier structures (null if no assign operations) unassigned: type: - array - 'null' items: $ref: '#/components/schemas/ProgramTierStructureDTO' description: >- Successfully unassigned tier structures (null if no unassign operations) TierStructureAssignRef: type: object required: - id properties: id: type: string pattern: ^lts_[a-f0-9]+$ description: Tier structure id to assign additionalProperties: false TierStructureUnassignRef: type: object required: - id properties: id: type: string pattern: ^lts_[a-f0-9]+$ description: Tier structure id to unassign additionalProperties: false ProgramTierStructureDTO: type: object description: Tier structure assignment DTO (VLProgramTierStructureDTO) properties: tier_structure_id: type: string pattern: ^lts_[a-f0-9]+$ description: Tier structure identifier created_at: type: string format: date-time description: Assignment creation timestamp object: type: string const: program_tier_structure ErrorResponse: type: object description: Standard error response. properties: code: type: integer description: HTTP status code. key: type: string description: Machine-readable error key. message: type: string description: Human-readable error message. details: type: string description: Additional error details. request_id: type: - string - 'null' description: Request identifier for tracing. resource_id: type: string description: Related resource identifier (when applicable). resource_type: type: string description: Related resource type (when applicable). required: - code - key - message responses: BadRequest: description: Validation error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' NotFound: description: Resource not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' Conflict: description: Resource locked or invalid state transition content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: code: 409 key: non_draft_program message: Invalid vl_program status details: >- Cannot modify card definition assignment when program status is not DRAFT InternalServerError: description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT X-App-Id: type: apiKey name: X-App-Id in: header X-App-Token: type: apiKey name: X-App-Token in: header ````