> ## 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.

# Object Schemas

> Schema model definitions

You can find the object definitions for the given schemas by navigating to the respective endpoint and viewing the response schema definition and examples.

| **API**             | **Object**                                                                                                                                                                                                                                                                           |
| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Vouchers            | [Voucher object](/api-reference/vouchers/voucher-object)                                                                                                                                                                                                                             |
| Campaigns           | [Campaign object](/api-reference/campaigns/campaign-object)                                                                                                                                                                                                                          |
| Promotions          | [Promotion tier object](/api-reference/promotions/promotion-tier-object)                                                                                                                                                                                                             |
| Rewards             | [Reward object](/api-reference/rewards/reward-object)[Reward assignment object](/api-reference/rewards/reward-assignment-object)                                                                                                                                                     |
| Publications        | [Publication object](/api-reference/publications/publication-object)                                                                                                                                                                                                                 |
| Validations         | [Validation object](/api-reference/validations/validation-object)                                                                                                                                                                                                                    |
| Redemptions         | [Redemption object](/api-reference/redemptions/redemption-object)[Redemption rollback object](/api-reference/redemptions/redemption-rollback-object)                                                                                                                                 |
| Stackable Discounts | [Stackable Redemptions object](/api-reference/redemptions/stackable-redemptions-object)                                                                                                                                                                                              |
| Loyalties           | [Loyalty campaign object](/api-reference/loyalties/loyalty-campaign-object)[Loyalty card object](/api-reference/loyalties/loyalty-card-object)[Earning rule object](/api-reference/loyalties/earning-rule-object)[Loyalty tier object](/api-reference/loyalties/loyalty-tier-object) |
| Customers           | [Customer object](/api-reference/customers/customer-object)[Customer activity object](/api-reference/customers/customer-activity-object)                                                                                                                                             |
| Orders              | [Order object](/api-reference/orders/order-calculated-object)                                                                                                                                                                                                                        |
| Products            | [Product object](/api-reference/products/product-object)[SKU object](/api-reference/products/sku-object)                                                                                                                                                                             |
| Product Collections | [Product collection object](/api-reference/product-collections/product-collection-object)                                                                                                                                                                                            |
| Validation Rules    | [Validation rule object](/api-reference/validation-rules/validation-rule-object)[Validation rule assignment object](/api-reference/validation-rules/validation-rule-assignment-object)                                                                                               |
| Segments            | [Segment object](/api-reference/segments/segment-object)                                                                                                                                                                                                                             |
| Events              | [Event object](/api-reference/events/event-object)                                                                                                                                                                                                                                   |
| Async Actions       | [Async action object](/api-reference/async-actions/async-action-object)                                                                                                                                                                                                              |
| Exports             | [Export object](/api-reference/exports/export-object)                                                                                                                                                                                                                                |
| Categories          | [Category object](/api-reference/categories/category-object)                                                                                                                                                                                                                         |
| Metadata Schemas    | [Metadata schema object](/api-reference/metadata-schemas/metadata-schema-object)                                                                                                                                                                                                     |