> ## 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. # Create Validation Rules Assignments > Assign validation rule to either one of the following objects: voucher, campaign, promotion tier, earning rule, reward, distribution. ## OpenAPI ````yaml /openapi/validation-rules.json post /v1/validation-rules/{validationRuleId}/assignments openapi: 3.0.1 info: title: Voucherify API - Validation Rules version: v2018-08-01 description: >- Voucherify promotion engine REST API. Please see https://docs.voucherify.io/docs for more details. contact: name: Voucherify Team url: https://www.voucherify.io/contact-support email: support@voucherify.io termsOfService: https://www.voucherify.io/legal/subscription-agreement license: name: MIT url: https://github.com/voucherifyio/voucherify-js-sdk/blob/main/LICENSE servers: - url: https://{cluster}.voucherify.io description: Base URL variables: cluster: default: api enum: - api - us1.api - as1.api - download - us1.download - as1.download security: [] paths: /v1/validation-rules/{validationRuleId}/assignments: parameters: - schema: $ref: '#/components/schemas/ParameterValidationRuleId' name: validationRuleId in: path required: true description: Unique validation rule ID. post: tags: - Validation Rules summary: Create Validation Rules Assignments description: >- Assign validation rule to either one of the following objects: voucher, campaign, promotion tier, earning rule, reward, distribution. operationId: create-validation-rule-assignment parameters: - schema: $ref: '#/components/schemas/ParameterBoolean' in: query description: >- If this flag is set to `true`, the previous assignment with the same data will be deleted and a new one will be added. name: force requestBody: description: >- Specify the resource that you would like to assign the validation rule to. content: application/json: schema: $ref: '#/components/schemas/ValidationRulesAssignmentsCreateRequestBody' examples: Voucher: value: related_object_type: voucher related_object_id: '{{voucherId}}' Campaign: value: related_object_type: campaign related_object_id: '{{campaignId}}' Distribution: value: related_object_type: distribution related_object_id: '{{distributionId}}' required: true responses: '200': description: Returns a validation rules assignment object. content: application/json: schema: $ref: >- #/components/schemas/ValidationRulesAssignmentsCreateResponseBody examples: Example: value: id: asgm_kPPiNW3smQLRMWiF rule_id: val_ZEZmA9oit8aU related_object_id: camp_Rv9EuIrkT08YEORb2pUMGSUo related_object_type: campaign created_at: '2022-09-14T07:06:49.557Z' object: validation_rules_assignment '409': description: Returns an error if an duplicate assignment is found. content: application/json: schema: $ref: '#/components/schemas/Error' examples: Duplicate: value: code: 409 key: duplicate_found message: Duplicated resource found details: >- Duplicated validation_rules_assignment exists with id asgm_ixJEwQbUv8hfPlhO request_id: v-0bb06fd1c3478dcb47 resource_id: asgm_ixJEwQbUv8hfPlhO resource_type: validation_rules_assignment security: - X-App-Id: [] X-App-Token: [] - X-Voucherify-OAuth: - api - validation-rules components: schemas: ParameterValidationRuleId: type: string example: val_TU4de3EP4dlL ParameterBoolean: type: boolean ValidationRulesAssignmentsCreateRequestBody: type: object description: >- Request body schema for **POST** `v1/validation-rules/{validationRuleId}/assignments`. title: Create Validation Rule Assignments Request Body properties: related_object_type: type: string description: Defines the related object, e.g. `voucher`. default: voucher enum: - voucher - promotion_tier - campaign - earning_rule - distribution - reward_assignment related_object_id: type: string description: >- Unique related object ID assigned by Voucherify, e.g. `v_lfZi4rcEGe0sN9gmnj40bzwK2FH6QUno` for a voucher. ValidationRulesAssignmentsCreateResponseBody: type: object title: Validation Rules Assignments Create Response Body description: >- Response body for **POST** `v1/validation-rules/{validationRuleId}/assignments`. allOf: - $ref: '#/components/schemas/ValidationRuleAssignment' Error: title: Error Object type: object description: Error details properties: code: type: integer description: Error's HTTP status code. key: type: string description: Short string describing the kind of error which occurred. message: type: string description: A human-readable message providing a short description of the error. details: type: string description: A human-readable message providing more details about the error. request_id: type: string example: v-0a885062c80375740f description: >- This ID is useful when troubleshooting and/or finding the root cause of an error response by our support team. resource_id: type: string description: >- Unique resource ID that can be used in another endpoint to get more details. example: rf_0c5d710a87c8a31f86 resource_type: type: string description: The resource type. example: voucher error: type: object description: Includes additional information about the error. properties: message: type: string description: The message configured by the user in a validation rule. required: - code - message ValidationRuleAssignment: title: Validation Rule Assignment type: object description: This is an object representing a validation rule assignment. properties: id: type: string example: asgm_74F7QZoYbUoljwQO description: Validation rule assignment ID. rule_id: type: string example: val_4j7DCRm2IS59 description: Validation rule ID. related_object_id: type: string example: v_JtWunK6jUo7X2qOFj0SyRHq4p9tgENlT description: The resource ID to which the validation rule was assigned. related_object_type: type: string description: The type of resource to which the validation rule was assigned. enum: - voucher - campaign - earning_rule - reward_assignment - promotion_tier - distribution created_at: type: string example: '2022-02-17T08:18:15.085Z' description: >- Timestamp representing the date and time when the validation rule assignment was created. The value is shown in the ISO 8601 format. format: date-time object: type: string default: validation_rules_assignment description: The type of the object represented by the ID. enum: - validation_rules_assignment required: - id - rule_id - related_object_id - related_object_type - created_at - object securitySchemes: X-App-Id: type: apiKey name: X-App-Id in: header X-App-Token: type: apiKey name: X-App-Token in: header X-Voucherify-OAuth: type: oauth2 flows: implicit: authorizationUrl: https://api.voucherify.io/v1/oauth/token scopes: api: Gives access to whole server-side API. vouchers: >- Gives access to all endpoints and methods starting with `v1/vouchers`. client_api: Gives access to whole client-side API. client_vouchers: >- Gives access to all endpoints and methods starting with `/client/v1/vouchers`. promotions: >- Gives access to all endpoints and methods starting with `/v1/promotions`. client_promotions: >- Gives access to all endpoints and methods starting with `/client/v1/promotions` campaigns: >- Gives access to all endpoints and methods starting with `v1/campaigns`. client_publish: >- Gives access to all endpoints and methods starting with `/client/v1/publish`. exports: >- Gives access to all endpoints and methods starting with `/v1/exports`. publications: >- Gives access to all endpoints and methods starting with `/v1/publications`. client_validate: >- Gives access to all endpoints and methods starting with `/client/v1/validate`. validations: >- Gives access to all endpoints and methods starting with `/v1/validations`. client_validations: >- Gives access to all endpoints and methods starting with `/client/v1/validations`. qualifications: >- Gives access to all endpoints and methods starting with `/v1/qualifications`. client_qualifications: >- Gives access to all endpoints and methods starting with `/client/v1/qualifications`. client_redeem: >- Gives access to all endpoints and methods starting with `/client/v1/redeem redemptions: >- Gives access to all endpoints and methods starting with `/v1/redemptions`. client_redemptions: >- Gives access to all endpoints and methods starting with `/client/v1/redemptions` customers: >- Gives access to all endpoints and methods starting with `/v1/customers`. client_customers: >- Gives access to all endpoints and methods starting with `/client/v1/customers`. orders: >- Gives access to all endpoints and methods starting with `/v1/orders`. products: >- Gives access to all endpoints and methods starting with `/v1/products`. skus: >- Gives access to all endpoints and methods starting with `/v1/SKUs`. validation-rules: >- Gives access to all endpoints and methods starting with `/v1/validation-rules`. validation-rules-assignments: >- Gives access to all endpoints and methods starting with `/v1/validation-rules-assignments segments: >- Gives access to all endpoints and methods starting with `/v1/segments`. events: >- Gives access to all endpoints and methods starting with `/v1/events`. client_events: >- Gives access to all endpoints and methods starting with `client/v1/events`. rewards: >- Gives access to all endpoints and methods starting with `/v1/rewards`. assets: >- Gives access to all endpoints and methods starting with `/v1/assets`. task-results: >- Gives access to all endpoints and methods starting with `/v1/task-results`. loyalties: >- Gives access to all endpoints and methods starting with `/v1/loyalties`. client_consents: >- Gives access to all endpoints and methods starting with `client/v1/consents`. consents: >- Gives access to all endpoints and methods starting with `/v1/consents`. async-actions: >- Gives access to all endpoints and methods starting with `/v1/async-actions`. product-collections: >- Gives access to all endpoints and methods starting with `/v1/product-collections`. categories: >- Gives access to all endpoints and methods starting with `/v1/categories`. metadata-schemas: >- Gives access to all endpoints and methods starting with `/v1/metadata-schemas`. locations: >- Gives access to all endpoints and methods starting with `/v1/locations`. referrals: >- Gives access to all endpoints and methods starting with `/v1/referrals`. trash-bin: >- Gives access to all endpoints and methods starting with `/v1/trash-bin`. templates: >- Gives access to all endpoints and methods starting with `/v1/templates`. ````