diff --git a/src/components/CompanyAddressInput/CompanyAddressForm.tsx b/src/components/CompanyAddressInput/CompanyAddressForm.tsx
index b94b87aac..a3b58f8a0 100644
--- a/src/components/CompanyAddressInput/CompanyAddressForm.tsx
+++ b/src/components/CompanyAddressInput/CompanyAddressForm.tsx
@@ -15,12 +15,16 @@ import { getFormErrors } from "@saleor/utils/errors";
 import { ShopErrorFragment } from "@saleor/siteSettings/types/ShopErrorFragment";
 import { AccountErrorFragment } from "@saleor/customers/types/AccountErrorFragment";
 import getAccountErrorMessage from "@saleor/utils/errors/account";
+import getWarehouseErrorMessage from "@saleor/utils/errors/warehouse";
+import { WarehouseErrorFragment } from "@saleor/warehouses/types/WarehouseErrorFragment";
 
 export interface CompanyAddressFormProps {
   countries: SingleAutocompleteChoiceType[];
   data: AddressTypeInput;
   displayCountry: string;
-  errors: Array<AccountErrorFragment | ShopErrorFragment>;
+  errors: Array<
+    AccountErrorFragment | ShopErrorFragment | WarehouseErrorFragment
+  >;
   disabled: boolean;
   onChange: (event: ChangeEvent) => void;
   onCountryChange: (event: ChangeEvent) => void;
@@ -34,14 +38,17 @@ const useStyles = makeStyles(
 );
 
 function getErrorMessage(
-  err: AccountErrorFragment | ShopErrorFragment,
+  err: AccountErrorFragment | ShopErrorFragment | WarehouseErrorFragment,
   intl: IntlShape
 ): string {
-  if (err?.__typename === "AccountError") {
-    return getAccountErrorMessage(err, intl);
+  switch (err?.__typename) {
+    case "AccountError":
+      return getAccountErrorMessage(err, intl);
+    case "WarehouseError":
+      return getWarehouseErrorMessage(err, intl);
+    default:
+      return getShopErrorMessage(err, intl);
   }
-
-  return getShopErrorMessage(err, intl);
 }
 
 const CompanyAddressForm: React.FC<CompanyAddressFormProps> = props => {
diff --git a/src/products/components/ProductWarehousesDialog/ProductWarehousesDialog.tsx b/src/products/components/ProductWarehousesDialog/ProductWarehousesDialog.tsx
index a975f31bb..f027fcad9 100644
--- a/src/products/components/ProductWarehousesDialog/ProductWarehousesDialog.tsx
+++ b/src/products/components/ProductWarehousesDialog/ProductWarehousesDialog.tsx
@@ -5,7 +5,7 @@ import DialogContent from "@material-ui/core/DialogContent";
 import DialogTitle from "@material-ui/core/DialogTitle";
 import Typography from "@material-ui/core/Typography";
 import React from "react";
-import { FormattedMessage, useIntl } from "react-intl";
+import { FormattedMessage, useIntl, IntlShape } from "react-intl";
 import makeStyles from "@material-ui/core/styles/makeStyles";
 import { diff, DiffData } from "fast-array-diff";
 
@@ -20,6 +20,9 @@ import { isSelected, toggle } from "@saleor/utils/lists";
 import useStateFromProps from "@saleor/hooks/useStateFromProps";
 import { BulkStockErrorFragment } from "@saleor/products/types/BulkStockErrorFragment";
 import { StockErrorFragment } from "@saleor/products/types/StockErrorFragment";
+import getStockErrorMessage, {
+  getBulkStockErrorMessage
+} from "@saleor/utils/errors/stock";
 
 const useStyles = makeStyles(
   theme => ({
@@ -49,6 +52,18 @@ export interface ProductWarehousesDialogProps {
   onConfirm: (data: DiffData<string>) => void;
 }
 
+function getErrorMessage(
+  err: BulkStockErrorFragment | StockErrorFragment,
+  intl: IntlShape
+): string {
+  switch (err?.__typename) {
+    case "BulkStockError":
+      return getBulkStockErrorMessage(err, intl);
+    default:
+      getStockErrorMessage(err, intl);
+  }
+}
+
 const ProductWarehousesDialog: React.FC<ProductWarehousesDialogProps> = ({
   confirmButtonState,
   disabled,
@@ -112,7 +127,9 @@ const ProductWarehousesDialog: React.FC<ProductWarehousesDialogProps> = ({
         </DialogContent>
         {errors.length > 0 && (
           <DialogContent className={classes.errorParagraph}>
-            <Typography color="error">{errors[0]?.message}</Typography>
+            <Typography color="error">
+              {getErrorMessage(errors[0], intl)}
+            </Typography>
           </DialogContent>
         )}
         <DialogActions>
diff --git a/src/utils/errors/stock.ts b/src/utils/errors/stock.ts
new file mode 100644
index 000000000..6bf4d1da9
--- /dev/null
+++ b/src/utils/errors/stock.ts
@@ -0,0 +1,47 @@
+import { IntlShape, defineMessages } from "react-intl";
+
+import { StockErrorFragment } from "@saleor/products/types/StockErrorFragment";
+import { StockErrorCode } from "@saleor/types/globalTypes";
+import { commonMessages } from "@saleor/intl";
+import { BulkStockErrorFragment } from "@saleor/products/types/BulkStockErrorFragment";
+import commonErrorMessages from "./common";
+import getProductErrorMessage from "./product";
+
+const messages = defineMessages({
+  slugUnique: {
+    defaultMessage:
+      "Stock for this warehouse already exists for this product variant",
+    description: "error message"
+  }
+});
+
+function getStockErrorMessage(
+  err: Omit<StockErrorFragment, "__typename"> | undefined,
+  intl: IntlShape
+): string {
+  if (err) {
+    switch (err.code) {
+      case StockErrorCode.UNIQUE:
+        return intl.formatMessage(messages.slugUnique);
+      case StockErrorCode.GRAPHQL_ERROR:
+        return intl.formatMessage(commonErrorMessages.graphqlError);
+      case StockErrorCode.REQUIRED:
+        return intl.formatMessage(commonMessages.requiredField);
+      case StockErrorCode.INVALID:
+        return intl.formatMessage(commonErrorMessages.invalid);
+      default:
+        return intl.formatMessage(commonErrorMessages.unknownError);
+    }
+  }
+
+  return undefined;
+}
+
+export function getBulkStockErrorMessage(
+  err: Omit<BulkStockErrorFragment, "__typename"> | undefined,
+  intl: IntlShape
+): string {
+  return getProductErrorMessage(err, intl);
+}
+
+export default getStockErrorMessage;
diff --git a/src/utils/errors/warehouse.ts b/src/utils/errors/warehouse.ts
new file mode 100644
index 000000000..ee45e04a3
--- /dev/null
+++ b/src/utils/errors/warehouse.ts
@@ -0,0 +1,51 @@
+import { IntlShape, defineMessages } from "react-intl";
+
+import { WarehouseErrorFragment } from "@saleor/warehouses/types/WarehouseErrorFragment";
+import { WarehouseErrorCode } from "@saleor/types/globalTypes";
+import { commonMessages } from "@saleor/intl";
+import commonErrorMessages from "./common";
+
+const messages = defineMessages({
+  slugUnique: {
+    defaultMessage: "Slug must be unique for each warehouse",
+    description: "error message"
+  }
+});
+
+function getWarehouseErrorMessage(
+  err: Omit<WarehouseErrorFragment, "__typename"> | undefined,
+  intl: IntlShape
+): string {
+  if (err) {
+    switch (err.code) {
+      case WarehouseErrorCode.GRAPHQL_ERROR:
+        return intl.formatMessage(commonErrorMessages.graphqlError);
+      case WarehouseErrorCode.REQUIRED:
+        return intl.formatMessage(commonMessages.requiredField);
+      case WarehouseErrorCode.INVALID:
+        return intl.formatMessage(commonErrorMessages.invalid);
+      default:
+        return intl.formatMessage(commonErrorMessages.unknownError);
+    }
+  }
+
+  return undefined;
+}
+
+export function getWarehouseSlugErrorMessage(
+  err: Omit<WarehouseErrorFragment, "__typename"> | undefined,
+  intl: IntlShape
+): string {
+  if (err) {
+    switch (err.code) {
+      case WarehouseErrorCode.UNIQUE:
+        return intl.formatMessage(messages.slugUnique);
+      default:
+        return getWarehouseErrorMessage(err, intl);
+    }
+  }
+
+  return undefined;
+}
+
+export default getWarehouseErrorMessage;
diff --git a/src/warehouses/components/WarehouseCreatePage/WarehouseCreatePage.tsx b/src/warehouses/components/WarehouseCreatePage/WarehouseCreatePage.tsx
index 61a25f254..b49e010f2 100644
--- a/src/warehouses/components/WarehouseCreatePage/WarehouseCreatePage.tsx
+++ b/src/warehouses/components/WarehouseCreatePage/WarehouseCreatePage.tsx
@@ -5,7 +5,6 @@ import Container from "@saleor/components/Container";
 import Form from "@saleor/components/Form";
 import SaveButtonBar from "@saleor/components/SaveButtonBar";
 import { ConfirmButtonTransitionState } from "@saleor/components/ConfirmButton";
-import { UserError } from "@saleor/types";
 import Grid from "@saleor/components/Grid";
 import CardSpacer from "@saleor/components/CardSpacer";
 import CompanyAddressInput from "@saleor/components/CompanyAddressInput";
@@ -18,6 +17,7 @@ import { ShopInfo_shop_countries } from "@saleor/components/Shop/types/ShopInfo"
 import AppHeader from "@saleor/components/AppHeader";
 import PageHeader from "@saleor/components/PageHeader";
 import { sectionNames } from "@saleor/intl";
+import { WarehouseErrorFragment } from "@saleor/warehouses/types/WarehouseErrorFragment";
 import WarehouseInfo from "../WarehouseInfo";
 
 export interface WarehouseCreatePageFormData extends AddressTypeInput {
@@ -26,7 +26,7 @@ export interface WarehouseCreatePageFormData extends AddressTypeInput {
 export interface WarehouseCreatePageProps {
   countries: ShopInfo_shop_countries[];
   disabled: boolean;
-  errors: UserError[];
+  errors: WarehouseErrorFragment[];
   saveButtonBarState: ConfirmButtonTransitionState;
   onBack: () => void;
   onSubmit: (data: WarehouseCreatePageFormData) => void;
diff --git a/src/warehouses/components/WarehouseDetailsPage/WarehouseDetailsPage.tsx b/src/warehouses/components/WarehouseDetailsPage/WarehouseDetailsPage.tsx
index d15bf3836..c4c53c811 100644
--- a/src/warehouses/components/WarehouseDetailsPage/WarehouseDetailsPage.tsx
+++ b/src/warehouses/components/WarehouseDetailsPage/WarehouseDetailsPage.tsx
@@ -5,7 +5,6 @@ import Container from "@saleor/components/Container";
 import Form from "@saleor/components/Form";
 import SaveButtonBar from "@saleor/components/SaveButtonBar";
 import { ConfirmButtonTransitionState } from "@saleor/components/ConfirmButton";
-import { UserError } from "@saleor/types";
 import Grid from "@saleor/components/Grid";
 import CardSpacer from "@saleor/components/CardSpacer";
 import CompanyAddressInput from "@saleor/components/CompanyAddressInput";
@@ -20,6 +19,7 @@ import AppHeader from "@saleor/components/AppHeader";
 import PageHeader from "@saleor/components/PageHeader";
 import { sectionNames } from "@saleor/intl";
 import { CountryCode } from "@saleor/types/globalTypes";
+import { WarehouseErrorFragment } from "@saleor/warehouses/types/WarehouseErrorFragment";
 import WarehouseInfo from "../WarehouseInfo";
 import WarehouseZones from "../WarehouseZones";
 import { WarehouseDetails_warehouse } from "../../types/WarehouseDetails";
@@ -30,7 +30,7 @@ export interface WarehouseDetailsPageFormData extends AddressTypeInput {
 export interface WarehouseDetailsPageProps {
   countries: ShopInfo_shop_countries[];
   disabled: boolean;
-  errors: UserError[];
+  errors: WarehouseErrorFragment[];
   saveButtonBarState: ConfirmButtonTransitionState;
   warehouse: WarehouseDetails_warehouse;
   onBack: () => void;
diff --git a/src/warehouses/components/WarehouseInfo/WarehouseInfo.tsx b/src/warehouses/components/WarehouseInfo/WarehouseInfo.tsx
index fdc51a261..1dde8858a 100644
--- a/src/warehouses/components/WarehouseInfo/WarehouseInfo.tsx
+++ b/src/warehouses/components/WarehouseInfo/WarehouseInfo.tsx
@@ -7,13 +7,14 @@ import { useIntl } from "react-intl";
 import CardTitle from "@saleor/components/CardTitle";
 import { commonMessages } from "@saleor/intl";
 import { FormChange } from "@saleor/hooks/useForm";
-import { UserError } from "@saleor/types";
-import { getFieldError } from "@saleor/utils/errors";
+import { getFormErrors } from "@saleor/utils/errors";
+import { WarehouseErrorFragment } from "@saleor/warehouses/types/WarehouseErrorFragment";
+import getWarehouseErrorMessage from "@saleor/utils/errors/warehouse";
 
 export interface WarehouseInfoProps {
   data: Record<"name", string>;
   disabled: boolean;
-  errors: UserError[];
+  errors: WarehouseErrorFragment[];
   onChange: FormChange;
 }
 
@@ -25,6 +26,8 @@ const WarehouseInfo: React.FC<WarehouseInfoProps> = ({
 }) => {
   const intl = useIntl();
 
+  const formErrors = getFormErrors(["name"], errors);
+
   return (
     <Card>
       <CardTitle
@@ -33,9 +36,9 @@ const WarehouseInfo: React.FC<WarehouseInfoProps> = ({
       <CardContent>
         <TextField
           disabled={disabled}
-          error={!!getFieldError(errors, "name")}
+          error={!!formErrors.name}
           fullWidth
-          helperText={getFieldError(errors, "name")?.message}
+          helperText={getWarehouseErrorMessage(formErrors.name, intl)}
           label={intl.formatMessage({
             defaultMessage: "Warehouse Name"
           })}
diff --git a/src/warehouses/mutations.ts b/src/warehouses/mutations.ts
index fbc86e437..343f1bb50 100644
--- a/src/warehouses/mutations.ts
+++ b/src/warehouses/mutations.ts
@@ -23,11 +23,11 @@ export const warehouseErrorFragment = gql`
 `;
 
 const deleteWarehouse = gql`
+  ${warehouseErrorFragment}
   mutation WarehouseDelete($id: ID!) {
     deleteWarehouse(id: $id) {
-      errors {
-        field
-        message
+      errors: warehouseErrors {
+        ...WarehouseErrorFragment
       }
     }
   }
@@ -39,11 +39,11 @@ export const useWarehouseDelete = makeMutation<
 
 const createWarehouse = gql`
   ${warehouseDetailsFragment}
+  ${warehouseErrorFragment}
   mutation WarehouseCreate($input: WarehouseCreateInput!) {
     createWarehouse(input: $input) {
-      errors {
-        field
-        message
+      errors: warehouseErrors {
+        ...WarehouseErrorFragment
       }
       warehouse {
         ...WarehouseDetailsFragment
@@ -58,11 +58,11 @@ export const useWarehouseCreate = makeMutation<
 
 const updateWarehouse = gql`
   ${warehouseDetailsFragment}
+  ${warehouseErrorFragment}
   mutation WarehouseUpdate($id: ID!, $input: WarehouseUpdateInput!) {
     updateWarehouse(id: $id, input: $input) {
-      errors {
-        field
-        message
+      errors: warehouseErrors {
+        ...WarehouseErrorFragment
       }
       warehouse {
         ...WarehouseDetailsFragment
diff --git a/src/warehouses/types/WarehouseCreate.ts b/src/warehouses/types/WarehouseCreate.ts
index 9973edd90..0cceb22dc 100644
--- a/src/warehouses/types/WarehouseCreate.ts
+++ b/src/warehouses/types/WarehouseCreate.ts
@@ -2,16 +2,16 @@
 /* eslint-disable */
 // This file was automatically generated and should not be edited.
 
-import { WarehouseCreateInput } from "./../../types/globalTypes";
+import { WarehouseCreateInput, WarehouseErrorCode } from "./../../types/globalTypes";
 
 // ====================================================
 // GraphQL mutation operation: WarehouseCreate
 // ====================================================
 
 export interface WarehouseCreate_createWarehouse_errors {
-  __typename: "Error";
+  __typename: "WarehouseError";
+  code: WarehouseErrorCode;
   field: string | null;
-  message: string | null;
 }
 
 export interface WarehouseCreate_createWarehouse_warehouse_shippingZones_edges_node {
diff --git a/src/warehouses/types/WarehouseDelete.ts b/src/warehouses/types/WarehouseDelete.ts
index 82bfc25da..b1ad9cf46 100644
--- a/src/warehouses/types/WarehouseDelete.ts
+++ b/src/warehouses/types/WarehouseDelete.ts
@@ -2,14 +2,16 @@
 /* eslint-disable */
 // This file was automatically generated and should not be edited.
 
+import { WarehouseErrorCode } from "./../../types/globalTypes";
+
 // ====================================================
 // GraphQL mutation operation: WarehouseDelete
 // ====================================================
 
 export interface WarehouseDelete_deleteWarehouse_errors {
-  __typename: "Error";
+  __typename: "WarehouseError";
+  code: WarehouseErrorCode;
   field: string | null;
-  message: string | null;
 }
 
 export interface WarehouseDelete_deleteWarehouse {
diff --git a/src/warehouses/types/WarehouseUpdate.ts b/src/warehouses/types/WarehouseUpdate.ts
index 6706227b2..a44d12b2a 100644
--- a/src/warehouses/types/WarehouseUpdate.ts
+++ b/src/warehouses/types/WarehouseUpdate.ts
@@ -2,16 +2,16 @@
 /* eslint-disable */
 // This file was automatically generated and should not be edited.
 
-import { WarehouseUpdateInput } from "./../../types/globalTypes";
+import { WarehouseUpdateInput, WarehouseErrorCode } from "./../../types/globalTypes";
 
 // ====================================================
 // GraphQL mutation operation: WarehouseUpdate
 // ====================================================
 
 export interface WarehouseUpdate_updateWarehouse_errors {
-  __typename: "Error";
+  __typename: "WarehouseError";
+  code: WarehouseErrorCode;
   field: string | null;
-  message: string | null;
 }
 
 export interface WarehouseUpdate_updateWarehouse_warehouse_shippingZones_edges_node {