diff --git a/src/main/kotlin/com/ecwid/apiclient/v3/dto/product/request/UpdatedProduct.kt b/src/main/kotlin/com/ecwid/apiclient/v3/dto/product/request/UpdatedProduct.kt
index 7017c9396..2c4e69260 100644
--- a/src/main/kotlin/com/ecwid/apiclient/v3/dto/product/request/UpdatedProduct.kt
+++ b/src/main/kotlin/com/ecwid/apiclient/v3/dto/product/request/UpdatedProduct.kt
@@ -269,8 +269,8 @@ data class UpdatedProduct(
 	data class ProductOptionChoice(
 		val text: String = "",
 		val textTranslated: LocalizedValueMap? = null,
-		val priceModifier: Double = 0.0,
-		val priceModifierType: PriceModifierType = PriceModifierType.ABSOLUTE
+		val priceModifier: Double? = null,
+		val priceModifierType: PriceModifierType? = null,
 	)
 
 	data class ShippingSettings(
diff --git a/src/test/kotlin/com/ecwid/apiclient/v3/entity/ProductsTest.kt b/src/test/kotlin/com/ecwid/apiclient/v3/entity/ProductsTest.kt
index e3324b614..527c01e75 100644
--- a/src/test/kotlin/com/ecwid/apiclient/v3/entity/ProductsTest.kt
+++ b/src/test/kotlin/com/ecwid/apiclient/v3/entity/ProductsTest.kt
@@ -6,6 +6,7 @@ import com.ecwid.apiclient.v3.dto.category.request.CategoriesSearchRequest.Paren
 import com.ecwid.apiclient.v3.dto.category.request.CategoryCreateRequest
 import com.ecwid.apiclient.v3.dto.category.request.UpdatedCategory
 import com.ecwid.apiclient.v3.dto.common.*
+import com.ecwid.apiclient.v3.dto.product.enums.PriceModifierType
 import com.ecwid.apiclient.v3.dto.product.enums.ShippingSettingsType
 import com.ecwid.apiclient.v3.dto.product.request.*
 import com.ecwid.apiclient.v3.dto.product.request.GetProductFiltersRequest.*
@@ -1571,7 +1572,7 @@ private fun generateProductOptionChoice(): ProductOptionChoice {
 			"en" to enText
 		),
 		priceModifier = randomModifier(),
-		priceModifierType = randomEnumValue()
+		priceModifierType = randomEnumValue<PriceModifierType>()
 	)
 }
 
diff --git a/src/test/kotlin/com/ecwid/apiclient/v3/entity/VariationsTest.kt b/src/test/kotlin/com/ecwid/apiclient/v3/entity/VariationsTest.kt
index 315f6c2b7..ed58909e2 100644
--- a/src/test/kotlin/com/ecwid/apiclient/v3/entity/VariationsTest.kt
+++ b/src/test/kotlin/com/ecwid/apiclient/v3/entity/VariationsTest.kt
@@ -3,6 +3,7 @@ package com.ecwid.apiclient.v3.entity
 import com.ecwid.apiclient.v3.converter.toUpdated
 import com.ecwid.apiclient.v3.dto.common.AsyncPictureData
 import com.ecwid.apiclient.v3.dto.common.UploadFileData
+import com.ecwid.apiclient.v3.dto.product.enums.PriceModifierType
 import com.ecwid.apiclient.v3.dto.product.request.ProductCreateRequest
 import com.ecwid.apiclient.v3.dto.product.request.ProductDetailsRequest
 import com.ecwid.apiclient.v3.dto.product.request.UpdatedProduct
@@ -340,7 +341,7 @@ private fun generateProductSelectOption(name: String, values: List<String>): Upd
 private fun generateProductOptionChoice(value: String) = UpdatedProduct.ProductOptionChoice(
 	text = value,
 	priceModifier = randomModifier(),
-	priceModifierType = randomEnumValue()
+	priceModifierType = randomEnumValue<PriceModifierType>()
 )
 
 private fun generateProductRadioOption(name: String, values: List<String>): UpdatedProduct.ProductOption.RadioOption {
diff --git a/src/test/kotlin/com/ecwid/apiclient/v3/rule/NonnullPropertyRules.kt b/src/test/kotlin/com/ecwid/apiclient/v3/rule/NonnullPropertyRules.kt
index a90c2c731..5ebf15894 100644
--- a/src/test/kotlin/com/ecwid/apiclient/v3/rule/NonnullPropertyRules.kt
+++ b/src/test/kotlin/com/ecwid/apiclient/v3/rule/NonnullPropertyRules.kt
@@ -14,14 +14,6 @@ import kotlin.reflect.KProperty1
 val nonnullPropertyRules: List<NonnullPropertyRule<*, *>> = listOf(
 	AllowNonnull(ApiUpdatedDTO.ModifyKind.ReadWrite::fetchedDTOClass),
 
-	AllowNonnull(UpdatedProduct.ProductOption.CheckboxOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.DateOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.FilesOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.RadioOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.SelectOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.SizeOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.TextAreaOption::required),
-	AllowNonnull(UpdatedProduct.ProductOption.TextFieldOption::required),
 	AllowNonnull(UpdatedProduct.CustomPriceTier::value),
 
 	AllowNonnull(UpdatedStorageData::key),
@@ -39,18 +31,13 @@ val nonnullPropertyRules: List<NonnullPropertyRule<*, *>> = listOf(
 	IgnoreNonnull(UpdatedProduct.ProductOption.DateOption::name),
 	IgnoreNonnull(UpdatedProduct.ProductOption.FilesOption::name),
 	IgnoreNonnull(UpdatedProduct.ProductOption.RadioOption::choices),
-	IgnoreNonnull(UpdatedProduct.ProductOption.RadioOption::defaultChoice),
 	IgnoreNonnull(UpdatedProduct.ProductOption.RadioOption::name),
 	IgnoreNonnull(UpdatedProduct.ProductOption.SelectOption::choices),
-	IgnoreNonnull(UpdatedProduct.ProductOption.SelectOption::defaultChoice),
 	IgnoreNonnull(UpdatedProduct.ProductOption.SelectOption::name),
 	IgnoreNonnull(UpdatedProduct.ProductOption.SizeOption::choices),
-	IgnoreNonnull(UpdatedProduct.ProductOption.SizeOption::defaultChoice),
 	IgnoreNonnull(UpdatedProduct.ProductOption.SizeOption::name),
 	IgnoreNonnull(UpdatedProduct.ProductOption.TextAreaOption::name),
 	IgnoreNonnull(UpdatedProduct.ProductOption.TextFieldOption::name),
-	IgnoreNonnull(UpdatedProduct.ProductOptionChoice::priceModifier),
-	IgnoreNonnull(UpdatedProduct.ProductOptionChoice::priceModifierType),
 	IgnoreNonnull(UpdatedProduct.ProductOptionChoice::text),
 	IgnoreNonnull(UpdatedProduct.RecurringChargeSettings::recurringInterval),
 	IgnoreNonnull(UpdatedProduct.RecurringChargeSettings::recurringIntervalCount),