diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71ee9ce99..e55a790b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -58,6 +58,7 @@ All notable, unreleased changes to this project will be documented in this file.
 - Create channel filters in product, sales and voucher lists - #1187 by @jwm0
 - Add generic filter validation - #1187 by @jwm0
 - Fix duplicated labels in column picker - #1197 by @orzechdev
+- Fix forbidden null sending as attribute value - #1201 by @orzechdev
 
 # 2.11.1
 
diff --git a/schema.graphql b/schema.graphql
index d9ec858c8..3b5359811 100644
--- a/schema.graphql
+++ b/schema.graphql
@@ -558,7 +558,7 @@ type AttributeTranslatableContent implements Node {
   id: ID!
   name: String!
   translation(languageCode: LanguageCodeEnum!): AttributeTranslation
-  attribute: Attribute
+  attribute: Attribute @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type AttributeTranslate {
@@ -655,7 +655,7 @@ input AttributeValueFilterInput {
 
 input AttributeValueInput {
   id: ID
-  values: [String]
+  values: [String!]
   file: String
   contentType: String
   references: [ID!]
@@ -667,7 +667,7 @@ type AttributeValueTranslatableContent implements Node {
   id: ID!
   name: String!
   translation(languageCode: LanguageCodeEnum!): AttributeValueTranslation
-  attributeValue: AttributeValue
+  attributeValue: AttributeValue @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type AttributeValueTranslate {
@@ -697,7 +697,7 @@ type AttributeValueUpdate {
 
 input BulkAttributeValueInput {
   id: ID
-  values: [String]!
+  values: [String!]!
 }
 
 type BulkProductError {
@@ -808,7 +808,7 @@ type CategoryTranslatableContent implements Node {
   description: JSONString
   descriptionJson: JSONString @deprecated(reason: "Will be removed in Saleor 4.0. Use the `description` field instead.")
   translation(languageCode: LanguageCodeEnum!): CategoryTranslation
-  category: Category
+  category: Category @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type CategoryTranslate {
@@ -1280,7 +1280,7 @@ type CollectionTranslatableContent implements Node {
   description: JSONString
   descriptionJson: JSONString @deprecated(reason: "Will be removed in Saleor 4.0. Use the `description` field instead.")
   translation(languageCode: LanguageCodeEnum!): CollectionTranslation
-  collection: Collection
+  collection: Collection @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type CollectionTranslate {
@@ -2616,7 +2616,7 @@ type MenuItemTranslatableContent implements Node {
   id: ID!
   name: String!
   translation(languageCode: LanguageCodeEnum!): MenuItemTranslation
-  menuItem: MenuItem
+  menuItem: MenuItem @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type MenuItemTranslate {
@@ -2873,21 +2873,21 @@ type Mutation {
   voucherChannelListingUpdate(id: ID!, input: VoucherChannelListingInput!): VoucherChannelListingUpdate
   exportProducts(input: ExportProductsInput!): ExportProducts
   fileUpload(file: Upload!): FileUpload
-  checkoutAddPromoCode(checkoutId: ID!, promoCode: String!): CheckoutAddPromoCode
-  checkoutBillingAddressUpdate(billingAddress: AddressInput!, checkoutId: ID!): CheckoutBillingAddressUpdate
-  checkoutComplete(checkoutId: ID!, paymentData: JSONString, redirectUrl: String, storeSource: Boolean = false): CheckoutComplete
+  checkoutAddPromoCode(checkoutId: ID, promoCode: String!, token: UUID): CheckoutAddPromoCode
+  checkoutBillingAddressUpdate(billingAddress: AddressInput!, checkoutId: ID, token: UUID): CheckoutBillingAddressUpdate
+  checkoutComplete(checkoutId: ID, paymentData: JSONString, redirectUrl: String, storeSource: Boolean = false, token: UUID): CheckoutComplete
   checkoutCreate(input: CheckoutCreateInput!): CheckoutCreate
-  checkoutCustomerAttach(checkoutId: ID!): CheckoutCustomerAttach
-  checkoutCustomerDetach(checkoutId: ID!): CheckoutCustomerDetach
-  checkoutEmailUpdate(checkoutId: ID, email: String!): CheckoutEmailUpdate
-  checkoutLineDelete(checkoutId: ID!, lineId: ID): CheckoutLineDelete
-  checkoutLinesAdd(checkoutId: ID!, lines: [CheckoutLineInput]!): CheckoutLinesAdd
-  checkoutLinesUpdate(checkoutId: ID!, lines: [CheckoutLineInput]!): CheckoutLinesUpdate
-  checkoutRemovePromoCode(checkoutId: ID!, promoCode: String!): CheckoutRemovePromoCode
-  checkoutPaymentCreate(checkoutId: ID!, input: PaymentInput!): CheckoutPaymentCreate
-  checkoutShippingAddressUpdate(checkoutId: ID!, shippingAddress: AddressInput!): CheckoutShippingAddressUpdate
-  checkoutShippingMethodUpdate(checkoutId: ID, shippingMethodId: ID!): CheckoutShippingMethodUpdate
-  checkoutLanguageCodeUpdate(checkoutId: ID!, languageCode: LanguageCodeEnum!): CheckoutLanguageCodeUpdate
+  checkoutCustomerAttach(checkoutId: ID, token: UUID): CheckoutCustomerAttach
+  checkoutCustomerDetach(checkoutId: ID, token: UUID): CheckoutCustomerDetach
+  checkoutEmailUpdate(checkoutId: ID, email: String!, token: UUID): CheckoutEmailUpdate
+  checkoutLineDelete(checkoutId: ID, lineId: ID, token: UUID): CheckoutLineDelete
+  checkoutLinesAdd(checkoutId: ID, lines: [CheckoutLineInput]!, token: UUID): CheckoutLinesAdd
+  checkoutLinesUpdate(checkoutId: ID, lines: [CheckoutLineInput]!, token: UUID): CheckoutLinesUpdate
+  checkoutRemovePromoCode(checkoutId: ID, promoCode: String!, token: UUID): CheckoutRemovePromoCode
+  checkoutPaymentCreate(checkoutId: ID, input: PaymentInput!, token: UUID): CheckoutPaymentCreate
+  checkoutShippingAddressUpdate(checkoutId: ID, shippingAddress: AddressInput!, token: UUID): CheckoutShippingAddressUpdate
+  checkoutShippingMethodUpdate(checkoutId: ID, shippingMethodId: ID!, token: UUID): CheckoutShippingMethodUpdate
+  checkoutLanguageCodeUpdate(checkoutId: ID, languageCode: LanguageCodeEnum!, token: UUID): CheckoutLanguageCodeUpdate
   channelCreate(input: ChannelCreateInput!): ChannelCreate
   channelUpdate(id: ID!, input: ChannelUpdateInput!): ChannelUpdate
   channelDelete(id: ID!, input: ChannelDeleteInput): ChannelDelete
@@ -3674,7 +3674,7 @@ type PageTranslatableContent implements Node {
   content: JSONString
   contentJson: JSONString @deprecated(reason: "Will be removed in Saleor 4.0. Use the `content` field instead.")
   translation(languageCode: LanguageCodeEnum!): PageTranslation
-  page: Page
+  page: Page @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type PageTranslate {
@@ -4419,7 +4419,7 @@ type ProductTranslatableContent implements Node {
   description: JSONString
   descriptionJson: JSONString @deprecated(reason: "Will be removed in Saleor 4.0. Use the `description` field instead.")
   translation(languageCode: LanguageCodeEnum!): ProductTranslation
-  product: Product
+  product: Product @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type ProductTranslate {
@@ -4574,7 +4574,7 @@ type ProductVariantBulkCreate {
 }
 
 input ProductVariantBulkCreateInput {
-  attributes: [BulkAttributeValueInput]!
+  attributes: [BulkAttributeValueInput!]!
   sku: String!
   trackInventory: Boolean
   weight: WeightScalar
@@ -4626,7 +4626,7 @@ type ProductVariantCreate {
 }
 
 input ProductVariantCreateInput {
-  attributes: [AttributeValueInput]!
+  attributes: [AttributeValueInput!]!
   sku: String
   trackInventory: Boolean
   weight: WeightScalar
@@ -4647,7 +4647,7 @@ input ProductVariantFilterInput {
 }
 
 input ProductVariantInput {
-  attributes: [AttributeValueInput]
+  attributes: [AttributeValueInput!]
   sku: String
   trackInventory: Boolean
   weight: WeightScalar
@@ -4693,7 +4693,7 @@ type ProductVariantTranslatableContent implements Node {
   id: ID!
   name: String!
   translation(languageCode: LanguageCodeEnum!): ProductVariantTranslation
-  productVariant: ProductVariant
+  productVariant: ProductVariant @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type ProductVariantTranslate {
@@ -4944,7 +4944,7 @@ type SaleTranslatableContent implements Node {
   id: ID!
   name: String!
   translation(languageCode: LanguageCodeEnum!): SaleTranslation
-  sale: Sale
+  sale: Sale @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type SaleTranslate {
@@ -5066,7 +5066,7 @@ type ShippingMethodTranslatableContent implements Node {
   name: String!
   description: JSONString
   translation(languageCode: LanguageCodeEnum!): ShippingMethodTranslation
-  shippingMethod: ShippingMethod
+  shippingMethod: ShippingMethod @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type ShippingMethodTranslation implements Node {
@@ -5890,7 +5890,7 @@ type VoucherTranslatableContent implements Node {
   id: ID!
   name: String
   translation(languageCode: LanguageCodeEnum!): VoucherTranslation
-  voucher: Voucher
+  voucher: Voucher @deprecated(reason: "Will be removed in Saleor 4.0. Get model fields from the root level.")
 }
 
 type VoucherTranslate {
@@ -6169,4 +6169,4 @@ union _Entity = Address | User | Group | App | ProductVariant | Product | Produc
 
 type _Service {
   sdl: String
-}
\ No newline at end of file
+}
diff --git a/src/attributes/utils/handlers.ts b/src/attributes/utils/handlers.ts
index b6800c05f..ff16730a6 100644
--- a/src/attributes/utils/handlers.ts
+++ b/src/attributes/utils/handlers.ts
@@ -221,7 +221,9 @@ function getBooleanInput(attribute: AttributeInput) {
 function getDefaultInput(attribute: AttributeInput) {
   return {
     id: attribute.id,
-    values: attribute.value[0] === "" ? [] : attribute.value
+    values: ["", undefined, null].includes(attribute.value[0])
+      ? []
+      : attribute.value
   };
 }
 
diff --git a/src/products/mutations.ts b/src/products/mutations.ts
index ba3683944..5a48fe5be 100644
--- a/src/products/mutations.ts
+++ b/src/products/mutations.ts
@@ -330,7 +330,7 @@ export const variantUpdateMutation = gql`
     $addStocks: [StockInput!]!
     $removeStocks: [ID!]!
     $id: ID!
-    $attributes: [AttributeValueInput]
+    $attributes: [AttributeValueInput!]
     $sku: String
     $trackInventory: Boolean!
     $stocks: [StockInput!]!
diff --git a/src/products/types/VariantUpdate.ts b/src/products/types/VariantUpdate.ts
index fa6f8421b..4af9bfa82 100644
--- a/src/products/types/VariantUpdate.ts
+++ b/src/products/types/VariantUpdate.ts
@@ -755,7 +755,7 @@ export interface VariantUpdateVariables {
   addStocks: StockInput[];
   removeStocks: string[];
   id: string;
-  attributes?: (AttributeValueInput | null)[] | null;
+  attributes?: AttributeValueInput[] | null;
   sku?: string | null;
   trackInventory: boolean;
   stocks: StockInput[];
diff --git a/src/storybook/__snapshots__/Stories.test.ts.snap b/src/storybook/__snapshots__/Stories.test.ts.snap
index 056110a80..ac33acbd1 100644
--- a/src/storybook/__snapshots__/Stories.test.ts.snap
+++ b/src/storybook/__snapshots__/Stories.test.ts.snap
@@ -10268,31 +10268,31 @@ exports[`Storyshots Generics / Multiple select with autocomplete can load more 1
               Antigua and Barbuda
             </span>
           </div>
-          <hr
-            class="Hr-root-id MultiAutocompleteSelectFieldContent-hr-id"
-          />
+        </div>
+        <hr
+          class="Hr-root-id MultiAutocompleteSelectFieldContent-hr-id"
+        />
+        <div
+          class="MultiAutocompleteSelectFieldContent-progressContainer-id"
+        >
           <div
-            class="MultiAutocompleteSelectFieldContent-progressContainer-id"
+            class="MuiCircularProgress-root-id MultiAutocompleteSelectFieldContent-progress-id MuiCircularProgress-colorPrimary-id MuiCircularProgress-indeterminate-id"
+            role="progressbar"
+            style="width:24px;height:24px"
           >
-            <div
-              class="MuiCircularProgress-root-id MultiAutocompleteSelectFieldContent-progress-id MuiCircularProgress-colorPrimary-id MuiCircularProgress-indeterminate-id"
-              role="progressbar"
-              style="width:24px;height:24px"
+            <svg
+              class="MuiCircularProgress-svg-id"
+              viewBox="22 22 44 44"
             >
-              <svg
-                class="MuiCircularProgress-svg-id"
-                viewBox="22 22 44 44"
-              >
-                <circle
-                  class="MuiCircularProgress-circle-id MuiCircularProgress-circleIndeterminate-id"
-                  cx="44"
-                  cy="44"
-                  fill="none"
-                  r="20.2"
-                  stroke-width="3.6"
-                />
-              </svg>
-            </div>
+              <circle
+                class="MuiCircularProgress-circle-id MuiCircularProgress-circleIndeterminate-id"
+                cx="44"
+                cy="44"
+                fill="none"
+                r="20.2"
+                stroke-width="3.6"
+              />
+            </svg>
           </div>
         </div>
         <div
diff --git a/src/types/globalTypes.ts b/src/types/globalTypes.ts
index 93d34bf0d..f5d28f32c 100644
--- a/src/types/globalTypes.ts
+++ b/src/types/globalTypes.ts
@@ -1161,7 +1161,7 @@ export interface AttributeValueCreateInput {
 
 export interface AttributeValueInput {
   id?: string | null;
-  values?: (string | null)[] | null;
+  values?: string[] | null;
   file?: string | null;
   contentType?: string | null;
   references?: string[] | null;
@@ -1176,7 +1176,7 @@ export interface AttributeValueTranslationInput {
 
 export interface BulkAttributeValueInput {
   id?: string | null;
-  values: (string | null)[];
+  values: string[];
 }
 
 export interface CatalogueInput {
@@ -1726,7 +1726,7 @@ export interface ProductTypeSortingInput {
 }
 
 export interface ProductVariantBulkCreateInput {
-  attributes: (BulkAttributeValueInput | null)[];
+  attributes: BulkAttributeValueInput[];
   sku: string;
   trackInventory?: boolean | null;
   weight?: any | null;
@@ -1741,7 +1741,7 @@ export interface ProductVariantChannelListingAddInput {
 }
 
 export interface ProductVariantCreateInput {
-  attributes: (AttributeValueInput | null)[];
+  attributes: AttributeValueInput[];
   sku?: string | null;
   trackInventory?: boolean | null;
   weight?: any | null;
@@ -1750,7 +1750,7 @@ export interface ProductVariantCreateInput {
 }
 
 export interface ProductVariantInput {
-  attributes?: (AttributeValueInput | null)[] | null;
+  attributes?: AttributeValueInput[] | null;
   sku?: string | null;
   trackInventory?: boolean | null;
   weight?: any | null;