diff --git a/features/common.feature b/features/common.feature
index b9dc7093c6..2253507bbf 100644
--- a/features/common.feature
+++ b/features/common.feature
@@ -65,26 +65,26 @@ Feature: cli-kintone common test cases
   Scenario: CliKintoneTest-14 Should return the error message when no authorized information
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app 1"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520\] \[CB_AU01\] Please login."
+    And The output error message should match with the pattern: "\[401\] \[CB_AU01\] Please login."
 
   Scenario: CliKintoneTest-15 Should return the error message when the API token is incorrect
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app 1 --api-token abc"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520\] \[GAIA_IA02\] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400\] \[GAIA_IA02\] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-17 Should return the error message when the user information is incorrect
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app 1 --username abc --password abc"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520\] \[CB_WA01\] Password authentication failed."
+    And The output error message should match with the pattern: "\[401\] \[CB_WA01\] Password authentication failed."
 
   Scenario: CliKintoneTest-18 Should return the error message when authorization information is incomplete (password)
     Given Load username and password of user "user_for_common" as env vars: "USERNAME" and "PASSWORD"
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app 1 --username $USERNAME"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520\] \[CB_WA01\] Password authentication failed."
+    And The output error message should match with the pattern: "\[401\] \[CB_WA01\] Password authentication failed."
 
   Scenario: CliKintoneTest-19 Should return the error message when incorrect authorization information (password)
     Given Load username and password of user "user_for_common" as env vars: "USERNAME" and "PASSWORD"
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app 1 --username $USERNAME --password abc"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520\] \[CB_WA01\] Password authentication failed."
+    And The output error message should match with the pattern: "\[401\] \[CB_WA01\] Password authentication failed."
diff --git a/features/delete.feature b/features/delete.feature
index 08e0b8e1b6..875485e1e2 100644
--- a/features/delete.feature
+++ b/features/delete.feature
@@ -57,7 +57,7 @@ Feature: cli-kintone delete command
     And Load app token of the app "app_for_draft_token" with exact permissions "view,delete" as env var: "API_TOKEN"
     When I run the command with args "record delete --app $APP_ID --base-url $$TEST_KINTONE_BASE_URL --api-token $API_TOKEN --yes"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-131 Should return the error message when deleting records with two valid API Token.
     Given Load app ID of the app "app_for_delete" as env var: "APP_ID"
@@ -86,7 +86,7 @@ Feature: cli-kintone delete command
     And Load app token of the app "app_for_delete" with exact permissions "view,delete" as env var: "API_TOKEN"
     When I run the command with args "record delete --app $APP_ID --base-url $$TEST_KINTONE_BASE_URL --api-token $API_TOKEN,INVALID_API_TOKEN_2 --yes"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-134 Should return the error message when authorizing with username/password.
     Given Load app ID of the app "app_for_delete" as env var: "APP_ID"
diff --git a/features/export.feature b/features/export.feature
index b70e5712c6..d018fb5903 100644
--- a/features/export.feature
+++ b/features/export.feature
@@ -64,7 +64,7 @@ Feature: cli-kintone export command
     And Load app token of the app "app_for_draft_token" with exact permissions "view" as env var: "DRAFT_API_TOKEN"
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app $APP_ID --api-token $DRAFT_API_TOKEN"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-83 Should return the error message when exporting the record with a non-relevant API Token.
     Given Load app ID of the app "app_for_export" as env var: "APP_ID"
@@ -104,7 +104,7 @@ Feature: cli-kintone export command
     And Load app token of the app "app_for_export" with exact permissions "view" as env var: "API_TOKEN_1"
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app $APP_ID --api-token $API_TOKEN_1,INVALID_API_TOKEN"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-87 Should return the record contents in CSV format with --username and --password options.
     Given The app "app_for_export" has no records
@@ -280,7 +280,7 @@ Feature: cli-kintone export command
     And Load app token of the app "app_for_export" with exact permissions "view" as env var: "API_TOKEN"
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app $APP_ID --api-token $API_TOKEN --condition Unknown_Field>=20"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IQ11] Specified field \(Unknown_Field\) not found."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IQ11] Specified field \(Unknown_Field\) not found."
 
   Scenario: CliKintoneTest-97 Should return the record contents with valid condition query (-c option).
     Given The app "app_for_export" has no records
@@ -324,7 +324,7 @@ Feature: cli-kintone export command
     And Load app token of the app "app_for_export" with exact permissions "view" as env var: "API_TOKEN"
     When I run the command with args "record export --base-url $$TEST_KINTONE_BASE_URL --app $APP_ID --api-token $API_TOKEN --order-by 'Unknown_Field desc'"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IQ11] Specified field \(Unknown_Field\) not found."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IQ11] Specified field \(Unknown_Field\) not found."
 
   Scenario: CliKintoneTest-100 Should return the record contents when exporting the record with --fields specified.
     Given The app "app_for_export" has no records
diff --git a/features/import.feature b/features/import.feature
index 1bad4869e7..4e66481d8e 100644
--- a/features/import.feature
+++ b/features/import.feature
@@ -70,7 +70,7 @@ Feature: cli-kintone import command
     And Load app token of the app "app_for_draft_token" with exact permissions "add" as env var: "API_TOKEN"
     When I run the command with args "record import --base-url $$TEST_KINTONE_BASE_URL --app $APP_ID --api-token $API_TOKEN --file-path CliKintoneTest-24.csv"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-25 Should return the error message when importing records with two valid API Token.
     Given The CSV file "CliKintoneTest-25.csv" with content as below:
@@ -109,7 +109,7 @@ Feature: cli-kintone import command
     And Load app token of the app "app_for_import" with exact permissions "add" as env var: "API_TOKEN_IMPORT"
     When I run the command with args "record import --base-url $$TEST_KINTONE_BASE_URL --app $APP_ID --api-token $API_TOKEN_IMPORT,invalid_token --file-path CliKintoneTest-27.csv"
     Then I should get the exit code is non-zero
-    And The output error message should match with the pattern: "\[520] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
+    And The output error message should match with the pattern: "\[400] \[GAIA_IA02] The specified API token does not match the API token generated via an app."
 
   Scenario: CliKintoneTest-28 Should return the error message when importing records with an API Token without Add permission.
     Given The CSV file "CliKintoneTest-28.csv" with content as below: