diff --git a/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/pipeline_processors_editor.test.tsx b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/pipeline_processors_editor.test.tsx
index dcb234b5489031..90bba1b4ed14ae 100644
--- a/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/pipeline_processors_editor.test.tsx
+++ b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/__jest__/pipeline_processors_editor.test.tsx
@@ -395,4 +395,39 @@ describe('Pipeline Editor', () => {
       assertTestProcessor({ description: processorDescriptions.none, descriptionVisible: false });
     });
   });
+
+  describe('object values', () => {
+    const mockData: Pick<Pipeline, 'processors'> = {
+      processors: [
+        {
+          set: {
+            field: 'test',
+            value: { test: 'test' },
+          },
+        },
+        {
+          append: {
+            field: 'test',
+            value: { test: 'test' },
+          },
+        },
+      ],
+    };
+    it('editor works when value is an object', async () => {
+      onUpdate = jest.fn();
+      testBed = await setup({
+        value: {
+          ...mockData,
+        },
+        onFlyoutOpen: jest.fn(),
+        onUpdate,
+      });
+      expect(testBed.find(`processors>0.inlineTextInputNonEditableText`).text()).toBe(
+        'Sets value of "test" to "{"test":"test"}"'
+      );
+      expect(testBed.find(`processors>1.inlineTextInputNonEditableText`).text()).toBe(
+        'Appends "{"test":"test"}" to the "test" field'
+      );
+    });
+  });
 });
diff --git a/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/map_processor_type_to_form.tsx b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/map_processor_type_to_form.tsx
index a4a838f92d1ab7..5d672deb739d3b 100644
--- a/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/map_processor_type_to_form.tsx
+++ b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/map_processor_type_to_form.tsx
@@ -10,6 +10,7 @@ import React, { ReactNode } from 'react';
 import { FormattedMessage } from '@kbn/i18n-react';
 import { EuiCode, EuiLink } from '@elastic/eui';
 
+import { stringifyValueDescription } from './stringify_value_description';
 import { LicenseType } from '../../../../../types';
 
 import {
@@ -127,7 +128,7 @@ export const mapProcessorTypeToDescriptor: MapProcessorTypeToDescriptor = {
         defaultMessage: 'Appends "{value}" to the "{field}" field',
         values: {
           field,
-          value,
+          value: stringifyValueDescription(value),
         },
       }),
   },
@@ -810,7 +811,7 @@ export const mapProcessorTypeToDescriptor: MapProcessorTypeToDescriptor = {
         defaultMessage: 'Sets value of "{field}" to "{value}"',
         values: {
           field,
-          value,
+          value: stringifyValueDescription(value),
         },
       });
     },
diff --git a/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/stringify_value_description.test.ts b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/stringify_value_description.test.ts
new file mode 100644
index 00000000000000..62389782a601da
--- /dev/null
+++ b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/stringify_value_description.test.ts
@@ -0,0 +1,29 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { stringifyValueDescription } from './stringify_value_description';
+
+describe('StringifyValueDescription', () => {
+  it('works for a json object', () => {
+    expect(stringifyValueDescription({ test: 'test' })).toEqual('{"test":"test"}');
+  });
+  it('works for an array', () => {
+    expect(stringifyValueDescription(['a', 'b'])).toEqual('["a","b"]');
+  });
+  it('works for a string', () => {
+    expect(stringifyValueDescription('test')).toEqual('test');
+  });
+  it('works for a number', () => {
+    expect(stringifyValueDescription(123)).toEqual('123');
+  });
+  it('empty string for undefined', () => {
+    expect(stringifyValueDescription(undefined)).toEqual('');
+  });
+  it('empty string for null', () => {
+    expect(stringifyValueDescription(null)).toEqual('');
+  });
+});
diff --git a/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/stringify_value_description.ts b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/stringify_value_description.ts
new file mode 100644
index 00000000000000..d2ad726aed64e1
--- /dev/null
+++ b/x-pack/plugins/ingest_pipelines/public/application/components/pipeline_editor/components/shared/stringify_value_description.ts
@@ -0,0 +1,22 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export const stringifyValueDescription = (value: unknown): string => {
+  if (!value) {
+    return '';
+  }
+  if (typeof value === 'object') {
+    try {
+      // if the value is a json object, it will be stringified as json
+      return JSON.stringify(value);
+    } catch (e) {
+      // ignore any errors
+    }
+  }
+  // otherwise just return a stringified value
+  return String(value);
+};