> ## 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. # List program tier structure assignments > ⚠️ **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. Returns a cursor-paginated list of tier structures assigned to the program. ## OpenAPI ````yaml /openapi/loyalties-v2.json get /v2/loyalties/programs/{programId}/tier-structures openapi: 3.1.0 info: title: Voucherify Loyalty v2 API version: 2.0.0 description: >- Complete OpenAPI specification for the Voucherify Loyalty v2 API. All endpoints require the LOYALTY_V2 feature flag. Combined from per-domain specs: programs.yaml, members.yaml, program-operations.yaml, card-definitions.yaml, earning-rules.yaml, tier-structures.yaml, benefits.yaml, rewards.yaml, examine.yaml servers: - url: '{protocol}://{host}' variables: protocol: default: https enum: - https - http host: default: api.voucherify.io security: - bearerAuth: [] X-App-Id: [] X-App-Token: [] tags: - 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: 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: 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: Benefits description: >- Manage benefit 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: >- Evaluation endpoints that estimate earning opportunities and reward availability for a customer across their loyalty program memberships, without side effects. paths: /v2/loyalties/programs/{programId}/tier-structures: get: tags: - Programs summary: List program tier structure assignments 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. Returns a cursor-paginated list of tier structures assigned to the program. operationId: listProgramTierStructureAssignments parameters: - name: id in: path required: true description: Unique program identifier. schema: type: string pattern: ^lprg_[a-f0-9]+$ - name: limit in: query required: false description: >- Maximum number of items to return. Between 1 and 100. Defaults to 10. Non-integer values are rounded. schema: type: - number - string - 'null' minimum: 1 maximum: 100 default: 10 - name: order in: query required: false description: > Sorting order. A single value or an array of values. Prefix with `-` for descending. Defaults to `-created_at`. The same field cannot be used in both ascending and descending order at once. schema: oneOf: - type: array items: type: string enum: - '-created_at' - created_at - type: string enum: - '-created_at' - created_at - type: 'null' - name: cursor in: query required: false description: Pagination cursor returned by a previous call (`cursor.next`). schema: type: - string - 'null' pattern: ^lcrstsa_[a-f0-9]+$ responses: '200': description: Paginated list of tier structure assignments. content: application/json: schema: $ref: >- #/components/schemas/ProgramTierStructureAssignmentListResponse '400': description: >- Validation error - request body or query parameters failed validation, or the operation is not allowed in the current resource state. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Resource not found. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '409': description: Conflict - e.g. duplicate resource or invalid state transition. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: ProgramTierStructureAssignmentListResponse: type: object description: Cursor-paginated list of tier structure assignments. properties: object: type: string description: Object type marker. const: list data: type: array description: Tier structure assignments on the current page. items: $ref: '#/components/schemas/ProgramTierStructureAssignment' cursor: description: Pagination cursor, or null when there are no more results. oneOf: - $ref: '#/components/schemas/ProgramListCursor' - type: 'null' ErrorResponse: type: object description: Standard error response returned by all Loyalty v2 endpoints. properties: code: type: integer description: HTTP status code of the error. key: type: string description: Machine-readable error key. message: type: string description: Human-readable error message. details: type: string description: Additional details about the error. request_id: type: string description: Identifier of the request that produced the error. ProgramTierStructureAssignment: type: object description: A tier structure assigned to a program. properties: tier_structure_id: type: string description: Unique tier structure identifier. pattern: ^lts_[a-f0-9]+$ created_at: type: string format: date-time description: Assignment creation timestamp (ISO 8601). object: type: string description: Object type marker. const: program_tier_structure ProgramListCursor: type: object description: >- Cursor for fetching the next page of results. Present only when more results are available. properties: next: type: string description: >- Cursor id to pass as the `cursor` query parameter in the next request. expires_at: type: string format: date-time description: Timestamp after which the cursor expires and can no longer be used. 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 ````