diff --git a/app/code/Magento/CustomerGraphQl/etc/schema.graphqls b/app/code/Magento/CustomerGraphQl/etc/schema.graphqls
index b5cd2f595a4c9..c1717ea2ffb13 100644
--- a/app/code/Magento/CustomerGraphQl/etc/schema.graphqls
+++ b/app/code/Magento/CustomerGraphQl/etc/schema.graphqls
@@ -60,10 +60,10 @@ input CustomerInput {
     middlename: String @doc(description: "The customer's middle name")
     lastname: String @doc(description: "The customer's family name")
     suffix: String @doc(description: "A value such as Sr., Jr., or III")
-    email: String @doc(description: "The customer's email address. Required")
+    email: String! @doc(description: "The customer's email address. Required")
     dob: String @doc(description: "The customer's date of birth")
-    taxvat: String @doc(description: "The customer's Tax/VAT number (for corporate customers)")
-    gender: Int @doc(description: "The customer's gender(Male - 1, Female - 2)")
+    taxvat: String @doc(description: "The customer's Value-added tax (VAT) number (for corporate customers)")
+    gender: Int @doc(description: "The customer's gender (Male - 1, Female - 2)")
     password: String @doc(description: "The customer's password")
     is_subscribed: Boolean @doc(description: "Indicates whether the customer is subscribed to the company's newsletter")
 }
@@ -88,11 +88,11 @@ type Customer @doc(description: "Customer defines the customer name and address
     default_billing: String @doc(description: "The ID assigned to the billing address")
     default_shipping: String @doc(description: "The ID assigned to the shipping address")
     dob: String @doc(description: "The customer's date of birth")
-    taxvat: String @doc(description: "The customer's Tax/VAT number (for corporate customers)")
+    taxvat: String @doc(description: "The customer's Value-added tax (VAT) number (for corporate customers)")
     id: Int @doc(description: "The ID assigned to the customer") @deprecated(reason: "id is not needed as part of Customer because on server side it can be identified based on customer token used for authentication. There is no need to know customer ID on the client side.")
     is_subscribed: Boolean @doc(description: "Indicates whether the customer is subscribed to the company's newsletter") @resolver(class: "\\Magento\\CustomerGraphQl\\Model\\Resolver\\IsSubscribed")
     addresses: [CustomerAddress] @doc(description: "An array containing the customer's shipping and billing addresses") @resolver(class: "\\Magento\\CustomerGraphQl\\Model\\Resolver\\CustomerAddresses")
-    gender: Int @doc(description: "The customer's gender(Male - 1, Female - 2)")
+    gender: Int @doc(description: "The customer's gender (Male - 1, Female - 2)")
 }
 
 type CustomerAddress @doc(description: "CustomerAddress contains detailed information about a customer's billing and shipping addresses"){
@@ -112,7 +112,7 @@ type CustomerAddress @doc(description: "CustomerAddress contains detailed inform
     middlename: String @doc(description: "The middle name of the person associated with the shipping/billing address")
     prefix: String @doc(description: "An honorific, such as Dr., Mr., or Mrs.")
     suffix: String @doc(description: "A value such as Sr., Jr., or III")
-    vat_id: String @doc(description: "The customer's Tax/VAT number (for corporate customers)")
+    vat_id: String @doc(description: "The customer's Value-added tax (VAT) number (for corporate customers)")
     default_shipping: Boolean @doc(description: "Indicates whether the address is the default shipping address")
     default_billing: Boolean @doc(description: "Indicates whether the address is the default billing address")
     custom_attributes: [CustomerAddressAttribute] @deprecated(reason: "Custom attributes should not be put into container")
diff --git a/dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/CreateCustomerTest.php b/dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/CreateCustomerTest.php
index 5b3ff041d481b..0be968d6d340d 100644
--- a/dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/CreateCustomerTest.php
+++ b/dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/CreateCustomerTest.php
@@ -114,7 +114,7 @@ public function testCreateCustomerAccountWithoutPassword()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage "input" value should be specified
+     * @expectedExceptionMessage Field CustomerInput.email of required type String! was not provided
      */
     public function testCreateCustomerIfInputDataIsEmpty()
     {
@@ -140,7 +140,7 @@ public function testCreateCustomerIfInputDataIsEmpty()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage Required parameters are missing: Email
+     * @expectedExceptionMessage Field CustomerInput.email of required type String! was not provided
      */
     public function testCreateCustomerIfEmailMissed()
     {
@@ -275,7 +275,7 @@ public function testCreateCustomerIfNameEmpty()
 QUERY;
         $this->graphQlMutation($query);
     }
- 
+
     /**
      * @magentoConfigFixture default_store newsletter/general/active 0
      */