# UserErrorsShopPayPaymentRequestSessionUserErrorsCode - storefront - ENUM Version: unstable ## Description Possible error codes that can be returned by `ShopPayPaymentRequestSessionUserErrors`. ### Access Scopes ## Enum values * [IDEMPOTENCY_KEY_ALREADY_USED](/docs/api/storefront/unstable/enums/IDEMPOTENCY_KEY_ALREADY_USED) * [PAYMENT_REQUEST_INVALID_INPUT](/docs/api/storefront/unstable/enums/PAYMENT_REQUEST_INVALID_INPUT) * [PAYMENT_REQUEST_NOT_FOUND](/docs/api/storefront/unstable/enums/PAYMENT_REQUEST_NOT_FOUND) ## Fields with this enum * [UserErrorsShopPayPaymentRequestSessionUserErrors.code](/docs/api/storefront/unstable/objects/UserErrorsShopPayPaymentRequestSessionUserErrors) ## Examples