diff --git a/src/main/kotlin/com/ecwid/apiclient/v3/dto/cart/request/OrderForCalculate.kt b/src/main/kotlin/com/ecwid/apiclient/v3/dto/cart/request/OrderForCalculate.kt
index 3c7f775f..414fb970 100644
--- a/src/main/kotlin/com/ecwid/apiclient/v3/dto/cart/request/OrderForCalculate.kt
+++ b/src/main/kotlin/com/ecwid/apiclient/v3/dto/cart/request/OrderForCalculate.kt
@@ -31,6 +31,7 @@ data class OrderForCalculate(
 	val giftCardRedemption: Double? = null,
 	val totalBeforeGiftCardRedemption: Double? = null,
 	val giftCardDoubleSpending: Boolean? = null,
+	val fromOE: Boolean? = false,
 ) : ApiRequestDTO {
 
 	data class DiscountInfo(
diff --git a/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/OrderForCalculateRules.kt b/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/OrderForCalculateRules.kt
index 0938d68d..54517f3d 100644
--- a/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/OrderForCalculateRules.kt
+++ b/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/OrderForCalculateRules.kt
@@ -29,6 +29,7 @@ val orderForCalculateNullablePropertyRules: List<NullablePropertyRule<*, *>> = l
 	AllowNullable(OrderForCalculate::taxAlreadyDeductedFromShipping),
 	AllowNullable(OrderForCalculate::shippingOption),
 	IgnoreNullable(OrderForCalculate::shippingPerson),
+	AllowNullable(OrderForCalculate::fromOE),
 	AllowNullable(OrderForCalculate.CustomSurcharge::description),
 	AllowNullable(OrderForCalculate.CustomSurcharge::id),
 	AllowNullable(OrderForCalculate.CustomSurcharge::taxable),