# VoucherifySdk::LoyaltyTiersExpirationAllExpirationDate ## Properties | Name | Type | Description | Notes | | ---- | ---- | ----------- | ----- | | **type** | **String** | What triggers the tier to expire for a customer. `END_OF_PERIOD`: Expire tier at the end of the period. `END_OF_NEXT_PERIOD`: Expire tier at the end of the next period. `BALANCE_DROP`: Tier expires when the points balance drops below the required range of the tier. `CUSTOM`: Tier expires after a certain time period passes following the instance the points balance drops below the required range of the tier. | | | **extend** | **String** | Extend the expiration by adding extra months or days in ISO 8601 format. The tier will remain active even though it reaches its expiration time period. For example, a tier with a duration of `P3M` will be valid for an additional duration of 3 months and a tier with a duration of `P1D` will be valid for an additional duration of 1 day. | | | **rounding** | [**LoyaltyTiersExpirationAllExpirationDateRounding**](LoyaltyTiersExpirationAllExpirationDateRounding.md) | | [optional] |