diff --git a/x-pack/plugins/ml/common/util/errors.test.ts b/x-pack/plugins/ml/common/util/errors.test.ts
new file mode 100644
index 0000000000000..00af27248ccce
--- /dev/null
+++ b/x-pack/plugins/ml/common/util/errors.test.ts
@@ -0,0 +1,78 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import {
+  BoomResponse,
+  extractErrorMessage,
+  MLCustomHttpResponseOptions,
+  MLResponseError,
+} from './errors';
+import { ResponseError } from 'kibana/server';
+
+describe('ML - error message utils', () => {
+  describe('extractErrorMessage', () => {
+    test('returns just the error message', () => {
+      const testMsg = 'Saved object [index-pattern/blahblahblah] not found';
+
+      const bodyWithNestedErrorMsg: MLCustomHttpResponseOptions<MLResponseError> = {
+        body: {
+          message: {
+            msg: testMsg,
+          },
+        },
+        statusCode: 404,
+      };
+      expect(extractErrorMessage(bodyWithNestedErrorMsg)).toBe(testMsg);
+
+      const bodyWithStringMsg: MLCustomHttpResponseOptions<MLResponseError> = {
+        body: {
+          msg: testMsg,
+        },
+        statusCode: 404,
+      };
+      expect(extractErrorMessage(bodyWithStringMsg)).toBe(testMsg);
+
+      const bodyWithStringMessage: MLCustomHttpResponseOptions<ResponseError> = {
+        body: {
+          message: testMsg,
+        },
+        statusCode: 404,
+      };
+      expect(extractErrorMessage(bodyWithStringMessage)).toBe(testMsg);
+
+      const bodyWithString: MLCustomHttpResponseOptions<ResponseError> = {
+        body: testMsg,
+        statusCode: 404,
+      };
+      expect(extractErrorMessage(bodyWithString)).toBe(testMsg);
+
+      const bodyWithError: MLCustomHttpResponseOptions<ResponseError> = {
+        body: new Error(testMsg),
+        statusCode: 404,
+      };
+      expect(extractErrorMessage(bodyWithError)).toBe(testMsg);
+
+      const bodyWithBoomError: MLCustomHttpResponseOptions<BoomResponse> = {
+        statusCode: 404,
+        body: {
+          data: [],
+          isBoom: true,
+          isServer: false,
+          output: {
+            statusCode: 404,
+            payload: {
+              statusCode: 404,
+              error: testMsg,
+              message: testMsg,
+            },
+            headers: {},
+          },
+        },
+      };
+      expect(extractErrorMessage(bodyWithBoomError)).toBe(testMsg);
+    });
+  });
+});
diff --git a/x-pack/plugins/ml/common/util/errors.ts b/x-pack/plugins/ml/common/util/errors.ts
index 6f620f74a4531..e165e15d7c64e 100644
--- a/x-pack/plugins/ml/common/util/errors.ts
+++ b/x-pack/plugins/ml/common/util/errors.ts
@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { CustomHttpResponseOptions, ResponseError } from 'kibana/server';
+import { ResponseError, ResponseHeaders } from 'kibana/server';
 import { isErrorResponse } from '../types/errors';
 
 export function getErrorMessage(error: any) {
@@ -19,34 +19,76 @@ export function getErrorMessage(error: any) {
   return JSON.stringify(error);
 }
 
+// Adding temporary types until Kibana ResponseError is updated
+
+export interface BoomResponse {
+  data: any;
+  isBoom: boolean;
+  isServer: boolean;
+  output: {
+    statusCode: number;
+    payload: {
+      statusCode: number;
+      error: string;
+      message: string;
+    };
+    headers: {};
+  };
+}
+export type MLResponseError =
+  | {
+      message: {
+        msg: string;
+      };
+    }
+  | { msg: string };
+
+export interface MLCustomHttpResponseOptions<
+  T extends ResponseError | MLResponseError | BoomResponse
+> {
+  /** HTTP message to send to the client */
+  body?: T;
+  /** HTTP Headers with additional information about response */
+  headers?: ResponseHeaders;
+  statusCode: number;
+}
+
 export const extractErrorMessage = (
-  error: CustomHttpResponseOptions<ResponseError> | undefined | string
-): string | undefined => {
+  error:
+    | MLCustomHttpResponseOptions<MLResponseError | ResponseError | BoomResponse>
+    | undefined
+    | string
+): string => {
+  // extract only the error message within the response error coming from Kibana, Elasticsearch, and our own ML messages
+
   if (typeof error === 'string') {
     return error;
   }
+  if (error?.body === undefined) return '';
 
-  if (error?.body) {
-    if (typeof error.body === 'string') {
-      return error.body;
-    }
-    if (typeof error.body === 'object' && 'message' in error.body) {
-      if (typeof error.body.message === 'string') {
-        return error.body.message;
-      }
-      // @ts-ignore
-      if (typeof (error.body.message?.msg === 'string')) {
-        // @ts-ignore
-        return error.body.message?.msg;
-      }
+  if (typeof error.body === 'string') {
+    return error.body;
+  }
+  if (
+    typeof error.body === 'object' &&
+    'output' in error.body &&
+    error.body.output.payload.message
+  ) {
+    return error.body.output.payload.message;
+  }
+
+  if (typeof error.body === 'object' && 'msg' in error.body && typeof error.body.msg === 'string') {
+    return error.body.msg;
+  }
+
+  if (typeof error.body === 'object' && 'message' in error.body) {
+    if (typeof error.body.message === 'string') {
+      return error.body.message;
     }
-    if (typeof error.body === 'object' && 'msg' in error.body) {
-      // @ts-ignore
-      if (typeof error.body.msg === 'string') {
-        // @ts-ignore
-        return error.body.msg;
-      }
+    if (!(error.body.message instanceof Error) && typeof (error.body.message.msg === 'string')) {
+      return error.body.message.msg;
     }
   }
-  return undefined;
+  // If all else fail return an empty message instead of JSON.stringify
+  return '';
 };
diff --git a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/components/analytics_list/action_delete.tsx b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/components/analytics_list/action_delete.tsx
index 2d433f6b18484..38ef00914e8fb 100644
--- a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/components/analytics_list/action_delete.tsx
+++ b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/components/analytics_list/action_delete.tsx
@@ -18,6 +18,7 @@ import {
 } from '@elastic/eui';
 import { IIndexPattern } from 'src/plugins/data/common';
 import { FormattedMessage } from '@kbn/i18n/react';
+import { extractErrorMessage } from '../../../../../../../common/util/errors';
 import {
   deleteAnalytics,
   deleteAnalyticsAndDestIndex,
@@ -29,7 +30,6 @@ import {
 } from '../../../../../capabilities/check_capabilities';
 import { useMlKibana } from '../../../../../contexts/kibana';
 import { isDataFrameAnalyticsRunning, DataFrameAnalyticsListRow } from './common';
-import { extractErrorMessage } from '../../../../../util/error_utils';
 
 interface DeleteActionProps {
   item: DataFrameAnalyticsListRow;
diff --git a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/services/analytics_service/delete_analytics.ts b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/services/analytics_service/delete_analytics.ts
index 26cefff0a3f59..ebd3fa8982604 100644
--- a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/services/analytics_service/delete_analytics.ts
+++ b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/services/analytics_service/delete_analytics.ts
@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 import { i18n } from '@kbn/i18n';
+import { extractErrorMessage } from '../../../../../../../common/util/errors';
 import { getToastNotifications } from '../../../../../util/dependency_cache';
 import { ml } from '../../../../../services/ml_api_service';
 import { refreshAnalyticsList$, REFRESH_ANALYTICS_LIST_STATE } from '../../../../common';
@@ -11,7 +12,6 @@ import {
   isDataFrameAnalyticsFailed,
   DataFrameAnalyticsListRow,
 } from '../../components/analytics_list/common';
-import { extractErrorMessage } from '../../../../../util/error_utils';
 
 export const deleteAnalytics = async (d: DataFrameAnalyticsListRow) => {
   const toastNotifications = getToastNotifications();
diff --git a/x-pack/plugins/ml/public/application/util/error_utils.test.ts b/x-pack/plugins/ml/public/application/util/error_utils.test.ts
deleted file mode 100644
index a37cae42be518..0000000000000
--- a/x-pack/plugins/ml/public/application/util/error_utils.test.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License;
- * you may not use this file except in compliance with the Elastic License.
- */
-
-import { extractErrorMessage, MLCustomHttpResponseOptions, MLResponseError } from './error_utils';
-import expect from '@kbn/expect/expect.js';
-import { ResponseError } from 'kibana/server';
-
-describe('ML - error message utils', () => {
-  describe('extractErrorMessage', () => {
-    test('returns just the error message', () => {
-      const bodyWithNestedErrorMsg: MLCustomHttpResponseOptions<MLResponseError> = {
-        body: {
-          message: {
-            msg: 'Not Found',
-          },
-        },
-        statusCode: 404,
-      };
-      expect(extractErrorMessage(bodyWithNestedErrorMsg)).to.be('Not Found');
-
-      const bodyWithStringMsg: MLCustomHttpResponseOptions<MLResponseError> = {
-        body: {
-          msg: 'Not Found',
-        },
-        statusCode: 404,
-      };
-      expect(extractErrorMessage(bodyWithStringMsg)).to.be('Not Found');
-
-      const bodyWithStringMessage: MLCustomHttpResponseOptions<ResponseError> = {
-        body: {
-          message: 'Not Found',
-        },
-        statusCode: 404,
-      };
-      expect(extractErrorMessage(bodyWithStringMessage)).to.be('Not Found');
-
-      const bodyWithString: MLCustomHttpResponseOptions<ResponseError> = {
-        body: 'Not Found',
-        statusCode: 404,
-      };
-      expect(extractErrorMessage(bodyWithString)).to.be('Not Found');
-
-      const bodyWithError: MLCustomHttpResponseOptions<ResponseError> = {
-        body: new Error('Not Found'),
-        statusCode: 404,
-      };
-      expect(extractErrorMessage(bodyWithError)).to.be('Not Found');
-    });
-  });
-});
diff --git a/x-pack/plugins/ml/public/application/util/error_utils.ts b/x-pack/plugins/ml/public/application/util/error_utils.ts
deleted file mode 100644
index c7de4472ca9dc..0000000000000
--- a/x-pack/plugins/ml/public/application/util/error_utils.ts
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License;
- * you may not use this file except in compliance with the Elastic License.
- */
-
-import { ResponseError, ResponseHeaders } from 'kibana/server';
-
-// Adding temporary types until Kibana ResponseError is updated
-export type MLResponseError =
-  | {
-      message: {
-        msg: string;
-      };
-    }
-  | { msg: string };
-
-export interface MLCustomHttpResponseOptions<T extends ResponseError | MLResponseError> {
-  /** HTTP message to send to the client */
-  body?: T;
-  /** HTTP Headers with additional information about response */
-  headers?: ResponseHeaders;
-  statusCode: number;
-}
-
-export const extractErrorMessage = (
-  error:
-    | MLCustomHttpResponseOptions<MLResponseError>
-    | MLCustomHttpResponseOptions<ResponseError>
-    | undefined
-    | string
-): string | undefined => {
-  // extract only the error message within the response error coming from Kibana, Elasticsearch, and our own ML messages
-
-  if (typeof error === 'string') {
-    return error;
-  }
-  if (error?.body === undefined) return;
-
-  if (typeof error.body === 'string') {
-    return error.body;
-  }
-  if (typeof error.body === 'object' && 'msg' in error.body && typeof error.body.msg === 'string') {
-    return error.body.msg;
-  }
-
-  if (typeof error.body === 'object' && 'message' in error.body) {
-    if (typeof error.body.message === 'string') {
-      return error.body.message;
-    }
-    if (!(error.body.message instanceof Error) && typeof (error.body.message.msg === 'string')) {
-      return error.body.message.msg;
-    }
-  }
-};