diff --git a/package.json b/package.json
index 369247abc..adc79e5f8 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
     "react-transition-group": "4.4.1",
     "redux": "4.0.5",
     "regenerator-runtime": "0.13.7",
+    "uuid": "^3.4.0",
     "yup": "0.31.1"
   },
   "devDependencies": {
diff --git a/src/pages-and-resources/discussions/app-config-form/AppConfigForm.jsx b/src/pages-and-resources/discussions/app-config-form/AppConfigForm.jsx
index 692eb2608..682f36905 100644
--- a/src/pages-and-resources/discussions/app-config-form/AppConfigForm.jsx
+++ b/src/pages-and-resources/discussions/app-config-form/AppConfigForm.jsx
@@ -7,7 +7,7 @@ import { useRouteMatch } from 'react-router';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Container } from '@edx/paragon';
 
-import { useModel } from '../../../generic/model-store';
+import { useModel, useModels } from '../../../generic/model-store';
 import { PagesAndResourcesContext } from '../../PagesAndResourcesProvider';
 import {
   FAILED, LOADED, LOADING, selectApp,
@@ -29,12 +29,16 @@ function AppConfigForm({
   const { formRef } = useContext(AppConfigFormContext);
   const { path: pagesAndResourcesPath } = useContext(PagesAndResourcesContext);
   const { params: { appId: routeAppId } } = useRouteMatch();
-  const { selectedAppId, status, saveStatus } = useSelector(state => state.discussions);
+  const {
+    selectedAppId, status, saveStatus, discussionTopicIds,
+  } = useSelector(state => state.discussions);
   const app = useModel('apps', selectedAppId);
   // appConfigs have no ID of their own, so we use the active app ID to reference them.
   // This appConfig may come back as null if the selectedAppId is not the activeAppId, i.e.,
   // if we're configuring a new app.
-  const appConfig = useModel('appConfigs', selectedAppId);
+  const appConfigObj = useModel('appConfigs', selectedAppId);
+  const discussionTopics = useModels('discussionTopics', discussionTopicIds);
+  const appConfig = { ...appConfigObj, discussionTopics };
 
   useEffect(() => {
     if (status === LOADED) {
diff --git a/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.jsx b/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.jsx
index 22b0d4c15..a7cbd1f8c 100644
--- a/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.jsx
+++ b/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.jsx
@@ -1,12 +1,13 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import { Card, Form } from '@edx/paragon';
-import { useFormik } from 'formik';
+import { Formik } from 'formik';
 import * as Yup from 'yup';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 
 import DivisionByGroupFields from '../shared/DivisionByGroupFields';
 import AnonymousPostingFields from '../shared/AnonymousPostingFields';
+import DiscussionTopics from '../shared/discussion-topics/DiscussionTopics';
 import BlackoutDatesField, { blackoutDatesRegex } from '../shared/BlackoutDatesField';
 
 import messages from '../shared/messages';
@@ -15,48 +16,80 @@ import AppConfigFormDivider from '../shared/AppConfigFormDivider';
 function LegacyConfigForm({
   appConfig, onSubmit, formRef, intl, title,
 }) {
-  const {
-    handleSubmit,
-    handleChange,
-    handleBlur,
-    values,
-    errors,
-  } = useFormik({
-    initialValues: appConfig,
-    validationSchema: Yup.object().shape({
-      blackoutDates: Yup.string().matches(
-        blackoutDatesRegex,
-        intl.formatMessage(messages.blackoutDatesFormattingError),
-      ),
-    }),
-    onSubmit,
+  const legacyFormValidationSchema = Yup.object().shape({
+    blackoutDates: Yup.string().matches(
+      blackoutDatesRegex,
+      intl.formatMessage(messages.blackoutDatesFormattingError),
+    ),
+    discussionTopics: Yup.array()
+      .of(
+        Yup.object().shape({
+          name: Yup.string().required(intl.formatMessage(messages.discussionTopicRequired)),
+        }),
+      ).test('unique', (
+        discussionTopics,
+        testContext,
+        message = intl.formatMessage(messages.discussionTopicNameAlreadyExist),
+      ) => {
+        const uniqueDiscussionTopics = [...new Set(discussionTopics.map(topic => topic.name))];
+        const isUnique = discussionTopics.length === uniqueDiscussionTopics.length;
+        if (isUnique) {
+          return true;
+        }
+
+        const duplicateNameIndex = discussionTopics.findIndex(
+          (topic, index) => topic.name !== uniqueDiscussionTopics[index],
+        );
+        return testContext.createError({
+          path: `[${duplicateNameIndex}].name`,
+          message,
+        });
+      }),
   });
 
   return (
-    <Card className="mb-5 px-4 px-sm-5 pb-5" data-testid="legacyConfigForm">
-      <Form ref={formRef} onSubmit={handleSubmit}>
-        <h3 className="text-primary-500 my-3">{title}</h3>
-        <AppConfigFormDivider thick />
-        <AnonymousPostingFields
-          onBlur={handleBlur}
-          onChange={handleChange}
-          values={values}
-        />
-        <AppConfigFormDivider />
-        <DivisionByGroupFields
-          onBlur={handleBlur}
-          onChange={handleChange}
-          values={values}
-        />
-        <AppConfigFormDivider thick />
-        <BlackoutDatesField
-          errors={errors}
-          onBlur={handleBlur}
-          onChange={handleChange}
-          values={values}
-        />
-      </Form>
-    </Card>
+    <Formik
+      initialValues={appConfig}
+      validationSchema={legacyFormValidationSchema}
+      onSubmit={(values) => (onSubmit(values))}
+    >
+      {(
+        {
+          handleSubmit,
+          handleChange,
+          handleBlur,
+          values,
+          errors,
+        },
+      ) => (
+        <Card className="mb-5 px-4 px-sm-5 pb-5" data-testid="legacyConfigForm">
+          <Form ref={formRef} onSubmit={handleSubmit}>
+            <h3 className="text-primary-500 my-3">{title}</h3>
+            <AppConfigFormDivider thick />
+            <AnonymousPostingFields
+              onBlur={handleBlur}
+              onChange={handleChange}
+              values={values}
+            />
+            <AppConfigFormDivider />
+            <DivisionByGroupFields
+              onBlur={handleBlur}
+              onChange={handleChange}
+              values={values}
+            />
+            <AppConfigFormDivider thick />
+            <DiscussionTopics />
+            <AppConfigFormDivider thick />
+            <BlackoutDatesField
+              errors={errors}
+              onBlur={handleBlur}
+              onChange={handleChange}
+              values={values}
+            />
+          </Form>
+        </Card>
+      )}
+    </Formik>
   );
 }
 
@@ -69,6 +102,9 @@ LegacyConfigForm.propTypes = {
     allowAnonymousPosts: PropTypes.bool.isRequired,
     allowAnonymousPostsPeers: PropTypes.bool.isRequired,
     blackoutDates: PropTypes.string.isRequired,
+    discussionTopics: PropTypes.arrayOf(PropTypes.shape({
+      name: PropTypes.string.isRequired,
+    })),
   }),
   onSubmit: PropTypes.func.isRequired,
   // eslint-disable-next-line react/forbid-prop-types
diff --git a/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.test.jsx b/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.test.jsx
index 7d08b0063..429a621a3 100644
--- a/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.test.jsx
+++ b/src/pages-and-resources/discussions/app-config-form/apps/legacy/LegacyConfigForm.test.jsx
@@ -1,122 +1,171 @@
 import React, { createRef } from 'react';
 import { act, render } from '@testing-library/react';
 import { IntlProvider } from '@edx/frontend-platform/i18n';
+import { initializeMockApp } from '@edx/frontend-platform';
+import { AppProvider } from '@edx/frontend-platform/react';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import MockAdapter from 'axios-mock-adapter';
+
+import { getAppsUrl } from '../../../data/api';
+import { fetchApps } from '../../../data/thunks';
+import initializeStore from '../../../../../store';
+import executeThunk from '../../../../../utils';
+import {
+  legacyApiResponse,
+} from '../../../factories/mockApiResponses';
 import LegacyConfigForm from './LegacyConfigForm';
 
+const courseId = 'course-v1:edX+TestX+Test_Course';
+
 const defaultAppConfig = {
   id: 'legacy',
   divideByCohorts: false,
   divideCourseWideTopics: false,
   divideGeneralTopic: false,
   divideQuestionsForTAsTopic: false,
+  discussionTopics: [
+    { name: 'General', id: 'course-generated-id-123-client-made-this-up' },
+    { name: 'Edx', id: '13f106c6-6735-4e84-b097-0456cff55960' },
+  ],
   allowAnonymousPosts: false,
   allowAnonymousPostsPeers: false,
   blackoutDates: '[]',
 };
 
 describe('LegacyConfigForm', () => {
-  test('title rendering', () => {
-    const { container } = render(
-      <IntlProvider locale="en">
-        <LegacyConfigForm
-          title="Test Legacy edX Discussions"
-          appConfig={defaultAppConfig}
-          onSubmit={jest.fn()}
-          formRef={createRef()}
-        />
-      </IntlProvider>,
+  let axiosMock;
+  let store;
+  let container;
+
+  beforeEach(() => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    store = initializeStore();
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  const createComponent = (appConfig, onSubmit = jest.fn(), formRef = createRef()) => {
+    const wrapper = render(
+      <AppProvider store={store}>
+        <IntlProvider locale="en">
+          <LegacyConfigForm
+            title="Test Legacy edX Discussions"
+            appConfig={appConfig}
+            onSubmit={onSubmit}
+            formRef={formRef}
+          />
+        </IntlProvider>
+      </AppProvider>,
     );
+    container = wrapper.container;
+    return container;
+  };
+
+  const mockStore = async (mockResponse) => {
+    axiosMock.onGet(getAppsUrl(courseId)).reply(200, mockResponse);
+    await executeThunk(fetchApps(courseId), store.dispatch);
+  };
+
+  test('title rendering', async () => {
+    await mockStore(legacyApiResponse);
+    createComponent(defaultAppConfig);
 
     expect(container.querySelector('h3')).toHaveTextContent('Test Legacy edX Discussions');
   });
+
   test('calls onSubmit when the formRef is submitted', async () => {
     const formRef = createRef();
     const handleSubmit = jest.fn();
 
-    render(
-      <IntlProvider locale="en">
-        <LegacyConfigForm
-          title="Test Legacy edX Discussions"
-          appConfig={defaultAppConfig}
-          onSubmit={handleSubmit}
-          formRef={formRef}
-        />
-      </IntlProvider>,
-    );
+    await mockStore(legacyApiResponse);
+    createComponent(defaultAppConfig, handleSubmit, formRef);
 
     await act(async () => {
       formRef.current.submit();
     });
+
     expect(handleSubmit).toHaveBeenCalledWith(
       // Because we use defaultAppConfig as the initialValues of the form, and we haven't changed
       // any of the form inputs, this exact object shape is returned back to us, so we're reusing
       // it here.  It's not supposed to be 'the same object', it just happens to be.
       defaultAppConfig,
-      // The second argument is a Formik object with all sorts of functions on it which we don't
-      // care about.
-      expect.anything(),
     );
   });
 
-  test('default field states are correct, including removal of folded sub-fields', () => {
-    const { container } = render(
-      <IntlProvider locale="en">
-        <LegacyConfigForm
-          title="Test Legacy edX Discussions"
-          appConfig={defaultAppConfig}
-          onSubmit={jest.fn()}
-          formRef={createRef()}
-        />
-      </IntlProvider>,
-    );
+  test('default field states are correct, including removal of folded sub-fields', async () => {
+    await mockStore(legacyApiResponse);
+    createComponent(defaultAppConfig);
 
     // DivisionByGroupFields
     expect(container.querySelector('#divideByCohorts')).toBeInTheDocument();
     expect(container.querySelector('#divideByCohorts')).not.toBeChecked();
-    expect(container.querySelector('#divideCourseWideTopics')).not.toBeInTheDocument();
-    expect(container.querySelector('#divideGeneralTopic')).not.toBeInTheDocument();
-    expect(container.querySelector('#divideQuestionsForTAsTopic')).not.toBeInTheDocument();
+    expect(
+      container.querySelector('#divideCourseWideTopics'),
+    ).not.toBeInTheDocument();
+    expect(
+      container.querySelector('#divideGeneralTopic'),
+    ).not.toBeInTheDocument();
+    expect(
+      container.querySelector('#divideQuestionsForTAsTopic'),
+    ).not.toBeInTheDocument();
 
     // AnonymousPostingFields
     expect(container.querySelector('#allowAnonymousPosts')).toBeInTheDocument();
     expect(container.querySelector('#allowAnonymousPosts')).not.toBeChecked();
-    expect(container.querySelector('#allowAnonymousPostsPeers')).not.toBeInTheDocument();
+    expect(
+      container.querySelector('#allowAnonymousPostsPeers'),
+    ).not.toBeInTheDocument();
 
     // BlackoutDatesField
     expect(container.querySelector('#blackoutDates')).toBeInTheDocument();
     expect(container.querySelector('#blackoutDates')).toHaveValue('[]');
   });
 
-  test('folded sub-fields are in the DOM when parents are enabled', () => {
-    const { container } = render(
-      <IntlProvider locale="en">
-        <LegacyConfigForm
-          title="Test Legacy edX Discussions"
-          appConfig={{
-            ...defaultAppConfig,
-            divideByCohorts: true,
-            allowAnonymousPosts: true,
-          }}
-          onSubmit={jest.fn()}
-          formRef={createRef()}
-        />
-      </IntlProvider>,
-    );
+  test('folded sub-fields are in the DOM when parents are enabled', async () => {
+    await mockStore(legacyApiResponse);
+    createComponent({
+      ...defaultAppConfig,
+      divideByCohorts: true,
+      allowAnonymousPosts: true,
+    });
 
     // DivisionByGroupFields
     expect(container.querySelector('#divideByCohorts')).toBeInTheDocument();
     expect(container.querySelector('#divideByCohorts')).toBeChecked();
-    expect(container.querySelector('#divideCourseWideTopics')).toBeInTheDocument();
-    expect(container.querySelector('#divideCourseWideTopics')).not.toBeChecked();
+    expect(
+      container.querySelector('#divideCourseWideTopics'),
+    ).toBeInTheDocument();
+    expect(
+      container.querySelector('#divideCourseWideTopics'),
+    ).not.toBeChecked();
     expect(container.querySelector('#divideGeneralTopic')).toBeInTheDocument();
     expect(container.querySelector('#divideGeneralTopic')).not.toBeChecked();
-    expect(container.querySelector('#divideQuestionsForTAsTopic')).toBeInTheDocument();
-    expect(container.querySelector('#divideQuestionsForTAsTopic')).not.toBeChecked();
+    expect(
+      container.querySelector('#divideQuestionsForTAsTopic'),
+    ).toBeInTheDocument();
+    expect(
+      container.querySelector('#divideQuestionsForTAsTopic'),
+    ).not.toBeChecked();
 
     // AnonymousPostingFields
     expect(container.querySelector('#allowAnonymousPosts')).toBeInTheDocument();
     expect(container.querySelector('#allowAnonymousPosts')).toBeChecked();
-    expect(container.querySelector('#allowAnonymousPostsPeers')).toBeInTheDocument();
-    expect(container.querySelector('#allowAnonymousPostsPeers')).not.toBeChecked();
+    expect(
+      container.querySelector('#allowAnonymousPostsPeers'),
+    ).toBeInTheDocument();
+    expect(
+      container.querySelector('#allowAnonymousPostsPeers'),
+    ).not.toBeChecked();
   });
 });
diff --git a/src/pages-and-resources/discussions/app-config-form/apps/shared/discussion-topics/DiscussionTopics.jsx b/src/pages-and-resources/discussions/app-config-form/apps/shared/discussion-topics/DiscussionTopics.jsx
new file mode 100644
index 000000000..090132d9c
--- /dev/null
+++ b/src/pages-and-resources/discussions/app-config-form/apps/shared/discussion-topics/DiscussionTopics.jsx
@@ -0,0 +1,88 @@
+import React, { useState, useEffect } from 'react';
+import { useDispatch } from 'react-redux';
+import { Add } from '@edx/paragon/icons';
+import { Button } from '@edx/paragon';
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import { FieldArray, useFormikContext } from 'formik';
+import { v4 as uuid } from 'uuid';
+
+import messages from '../messages';
+import TopicItem from './TopicItem';
+import { removeModel } from '../../../../../../generic/model-store';
+import { updateDiscussionTopicIds } from '../../../../data/slice';
+import { updatedDiscussionTopics } from '../../../../data/thunks';
+
+const DiscussionTopics = ({ intl }) => {
+  const dispatch = useDispatch();
+  const { values } = useFormikContext();
+  const [topics, setTopics] = useState(values.discussionTopics);
+
+  useEffect(() => {
+    const updatedDiscussionTopicIds = values.discussionTopics?.map(topic => topic.id);
+
+    setTopics(values.discussionTopics);
+    dispatch(updateDiscussionTopicIds(updatedDiscussionTopicIds));
+    dispatch(updatedDiscussionTopics(values.discussionTopics));
+  }, [values.discussionTopics]);
+
+  const handleTopicDelete = (topicIndex, topicId, remove) => {
+    remove(topicIndex);
+    dispatch(removeModel({ modelType: 'discussionTopics', id: topicId }));
+  };
+
+  const addNewTopic = (push) => {
+    const payload = { name: '', id: uuid() };
+    push(payload);
+  };
+
+  return (
+    <>
+      <h5 className="text-gray-500 mt-4 mb-2">
+        {intl.formatMessage(messages.discussionTopics)}
+      </h5>
+      <label className="text-primary-500 mb-2 h4">
+        {intl.formatMessage(messages.discussionTopicsLabel)}
+      </label>
+      <div className="small mb-4 text-muted">
+        {intl.formatMessage(messages.discussionTopicsHelp)}
+      </div>
+      <div>
+        <FieldArray
+          name="discussionTopics"
+          render={({ push, remove }) => (
+            <div>
+              {
+                topics.map((topic, index) => (
+                  <TopicItem
+                    {...topic}
+                    key={`topic-${topic.id}`}
+                    index={index}
+                    onDelete={() => handleTopicDelete(index, topic.id, remove)}
+                  />
+                ))
+
+              }
+              <div className="mb-4">
+                <Add />
+                <Button
+                  onClick={() => addNewTopic(push)}
+                  variant="link"
+                  size="inline"
+                  className="mr-1 text-primary-500"
+                >
+                  {intl.formatMessage(messages.addTopicButton)}
+                </Button>
+              </div>
+            </div>
+          )}
+        />
+      </div>
+    </>
+  );
+};
+
+DiscussionTopics.propTypes = {
+  intl: intlShape.isRequired,
+};
+
+export default injectIntl(DiscussionTopics);
diff --git a/src/pages-and-resources/discussions/app-config-form/apps/shared/discussion-topics/TopicItem.jsx b/src/pages-and-resources/discussions/app-config-form/apps/shared/discussion-topics/TopicItem.jsx
new file mode 100644
index 000000000..73fcc739c
--- /dev/null
+++ b/src/pages-and-resources/discussions/app-config-form/apps/shared/discussion-topics/TopicItem.jsx
@@ -0,0 +1,162 @@
+import React, { useState, useEffect } from 'react';
+import PropTypes from 'prop-types';
+import {
+  Collapsible, Form, Card, Button,
+} from '@edx/paragon';
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import { useFormikContext } from 'formik';
+import { ExpandLess, ExpandMore, Delete } from '@edx/paragon/icons';
+import messages from '../messages';
+
+const TopicItem = ({
+  intl, index, name, onDelete,
+}) => {
+  const [title, setTitle] = useState(name);
+  const [showDeletePopup, setShowDeletePopup] = useState(false);
+  const {
+    handleChange,
+    handleBlur,
+    touched,
+    errors,
+  } = useFormikContext();
+
+  useEffect(() => {
+    setTitle(name);
+  }, [name]);
+
+  const isInvalidTopicNameKey = Boolean(
+    (touched.discussionTopics && touched.discussionTopics[index]?.name)
+    && (errors.discussionTopics && errors?.discussionTopics[index]?.name),
+  );
+
+  const isExistingName = Boolean(
+    (touched.discussionTopics && touched.discussionTopics[index]?.name)
+    && (errors && errors[index]?.name),
+  );
+
+  const getHeading = (isOpen = false) => {
+    let heading;
+    if (!title) {
+      heading = <span className="h4 py-2 mr-auto">Configure topic</span>;
+    } else if (isOpen) {
+      heading = <span className="h4 py-2 mr-auto">Rename {title} topic</span>;
+    } else {
+      heading = <span className="py-2">{title}</span>;
+    }
+    return heading;
+  };
+
+  const handleToggle = (isOpen) => {
+    if (!isOpen && !isInvalidTopicNameKey) {
+      setTitle(name);
+    }
+  };
+
+  const deleteDiscussionTopic = (event) => {
+    event.stopPropagation();
+    setShowDeletePopup(true);
+  };
+
+  const deletetopic = (
+    <Card className="rounded mb-3 p-1">
+      <Card.Body>
+        <div className="text-primary-500 mb-2 h4">
+          {intl.formatMessage(messages.discussionTopicDeletionLabel)}
+        </div>
+        <Card.Text className="text-justify text-muted">
+          {intl.formatMessage(messages.discussionTopicDeletionHelp)}
+        </Card.Text>
+        <div className="d-flex justify-content-end">
+          <Button
+            variant="tertiary"
+            onClick={() => setShowDeletePopup(false)}
+          >
+            {intl.formatMessage(messages.cancelButton)}
+          </Button>
+          <Button
+            variant="outline-brand"
+            className="ml-2"
+            onClick={() => onDelete()}
+          >
+            {intl.formatMessage(messages.deleteButton)}
+          </Button>
+        </div>
+      </Card.Body>
+    </Card>
+  );
+
+  return (
+    <>
+      {
+        showDeletePopup ? (
+          deletetopic
+        ) : (
+          <Collapsible.Advanced
+            className="collapsible-card rounded mb-3 px-3 py-2"
+            onToggle={handleToggle}
+            defaultOpen={!title}
+          >
+            <Collapsible.Trigger
+              className="collapsible-trigger d-flex border-0"
+              style={{ justifyContent: 'unset' }}
+            >
+              <Collapsible.Visible whenClosed>
+                {getHeading(false)}
+                <div className="py-2 ml-auto">
+                  <ExpandMore />
+                </div>
+              </Collapsible.Visible>
+              <Collapsible.Visible whenOpen>
+                {getHeading(true)}
+                <div className="pr-4 border-right">
+                  <Delete onClick={deleteDiscussionTopic} />
+                </div>
+                <div className="pl-4">
+                  <ExpandLess />
+                </div>
+              </Collapsible.Visible>
+            </Collapsible.Trigger>
+            <Collapsible.Body className="collapsible-body rounded px-0">
+              <Form.Group
+                controlId={`discussionTopics.${index}.name`}
+                isInvalid={isInvalidTopicNameKey}
+                className="m-2"
+              >
+                <Form.Control
+                  floatingLabel="Topic name"
+                  onChange={handleChange}
+                  onBlur={handleBlur}
+                  value={name}
+                  controlClassName="bg-white"
+                />
+                {isInvalidTopicNameKey && (
+                  <Form.Control.Feedback type="invalid" hasIcon={false}>
+                    <div className="small">
+                      {intl.formatMessage(messages.discussionTopicRequired)}
+                    </div>
+                  </Form.Control.Feedback>
+                )}
+                {isExistingName && (
+                  <Form.Control.Feedback type="invalid" hasIcon={false}>
+                    <div className="small">
+                      {intl.formatMessage(messages.discussionTopicNameAlreadyExist)}
+                    </div>
+                  </Form.Control.Feedback>
+                )}
+              </Form.Group>
+            </Collapsible.Body>
+          </Collapsible.Advanced>
+        )
+      }
+    </>
+  );
+};
+
+TopicItem.propTypes = {
+  name: PropTypes.string.isRequired,
+  index: PropTypes.number.isRequired,
+  onDelete: PropTypes.func.isRequired,
+  intl: intlShape.isRequired,
+};
+
+export default injectIntl(TopicItem);
diff --git a/src/pages-and-resources/discussions/app-config-form/apps/shared/messages.js b/src/pages-and-resources/discussions/app-config-form/apps/shared/messages.js
index 8b87472b8..4f4e35f02 100644
--- a/src/pages-and-resources/discussions/app-config-form/apps/shared/messages.js
+++ b/src/pages-and-resources/discussions/app-config-form/apps/shared/messages.js
@@ -97,6 +97,56 @@ const messages = defineMessages({
     defaultMessage: 'Enter true or false. If true, students can create discussion posts that are anonymous to other students. This setting does not make posts anonymous to course staff.',
   },
 
+  // Discussion Topics
+  discussionTopics: {
+    id: 'authoring.discussions.discussionTopics',
+    defaultMessage: 'Discussion topics',
+  },
+  discussionTopicsLabel: {
+    id: 'authoring.discussions.discussionTopics.label',
+    defaultMessage: 'General discussion topics',
+    description: 'Label for a discussion topic section allowing a user to add new topic.',
+  },
+  discussionTopicsHelp: {
+    id: 'authoring.discussions.discussionTopics.help',
+    defaultMessage: 'Discussions can include general topics not contained to the course structure. All courses have a general topic by default.',
+    description: 'Help text for adding new discussion topics that in general discussion topic section.',
+  },
+  discussionTopicRequired: {
+    id: 'authoring.discussions.discussionTopic.required',
+    defaultMessage: 'Topic name is a required field',
+    description: 'Tells the user that the discussion topic field is required and must have a value.',
+  },
+  discussionTopicNameAlreadyExist: {
+    id: 'authoring.discussions.discussionTopic.alreadyExistError',
+    defaultMessage: 'It looks like this name is already in use',
+    description: 'Tells the user that the discussion topic name already in use and must have a unique name.',
+  },
+  addTopicButton: {
+    id: 'authoring.discussions.addTopicButton',
+    defaultMessage: 'Add Topic',
+    description: 'Button label when Add a new discussion topic.',
+  },
+  deleteButton: {
+    id: 'authoring.discussions.deleteButton',
+    defaultMessage: 'Delete',
+    description: 'Button label when delete discussion topic from conformation card.',
+  },
+  cancelButton: {
+    id: 'authoring.discussions.cancelButton',
+    defaultMessage: 'Cancel',
+    description: 'Button label when cancel discussion topic deletion conformation.',
+  },
+  discussionTopicDeletionHelp: {
+    id: 'authoring.discussions.discussionTopicDeletion.help',
+    defaultMessage: ' edX recommends that you do not delete discussion topics once your course is running.',
+    description: 'Help text for delete a discussion topic from discussion topic section.',
+  },
+  discussionTopicDeletionLabel: {
+    id: 'authoring.discussions.discussionTopicDeletion.label',
+    defaultMessage: 'Delete this topic?',
+    description: 'Label for discussion topic delete popup allowing a user to delete a topic.',
+  },
   // Blackout dates
   blackoutDates: {
     id: 'authoring.discussions.blackoutDates',
diff --git a/src/pages-and-resources/discussions/data/api.js b/src/pages-and-resources/discussions/data/api.js
index e983efe75..56466138c 100644
--- a/src/pages-and-resources/discussions/data/api.js
+++ b/src/pages-and-resources/discussions/data/api.js
@@ -13,6 +13,22 @@ function normalizeLtiConfig(data) {
   };
 }
 
+function normalizeDiscussionTopic(data) {
+  return Object.entries(data).map(([key, value]) => (
+    {
+      name: key,
+      id: value.id,
+    }
+  ));
+}
+
+function extractDiscussionTopicIds(data) {
+  return Object.entries(
+    data,
+    // eslint-disable-next-line no-unused-vars
+  ).map(([key, value]) => value.id);
+}
+
 function normalizePluginConfig(data) {
   if (!data || Object.keys(data).length < 1) {
     return {};
@@ -57,6 +73,10 @@ function normalizeApps(data) {
     },
     activeAppId: data.providers.active,
     apps,
+    discussionTopicIds: data.plugin_configuration.discussion_topics
+      ? extractDiscussionTopicIds(data.plugin_configuration.discussion_topics) : [],
+    discussionTopics: data.plugin_configuration.discussion_topics
+      ? normalizeDiscussionTopic(data.plugin_configuration.discussion_topics) : [],
   };
 }
 
@@ -81,6 +101,13 @@ function denormalizeData(courseId, appId, data) {
   if (data.blackoutDates) {
     pluginConfiguration.discussion_blackouts = JSON.parse(data.blackoutDates);
   }
+  if (data.discussionTopics?.length) {
+    pluginConfiguration.discussion_topics = data.discussionTopics.reduce((topics, currentTopic) => {
+      const newTopics = { ...topics };
+      newTopics[currentTopic.name] = { id: currentTopic.id };
+      return newTopics;
+    }, {});
+  }
 
   const ltiConfiguration = {};
 
diff --git a/src/pages-and-resources/discussions/data/redux.test.js b/src/pages-and-resources/discussions/data/redux.test.js
index fd41aa50c..8d630c315 100644
--- a/src/pages-and-resources/discussions/data/redux.test.js
+++ b/src/pages-and-resources/discussions/data/redux.test.js
@@ -132,6 +132,7 @@ describe('Data layer integration tests', () => {
         status: LOADED,
         saveStatus: SAVED,
         hasValidationError: false,
+        discussionTopicIds: [],
       });
       expect(store.getState().models.apps.legacy).toEqual(legacyApp);
       expect(store.getState().models.apps.piazza).toEqual(piazzaApp);
@@ -157,6 +158,10 @@ describe('Data layer integration tests', () => {
         status: LOADED,
         saveStatus: SAVED,
         hasValidationError: false,
+        discussionTopicIds: [
+          '13f106c6-6735-4e84-b097-0456cff55960',
+          'course-generated-id-123-client-made-this-up',
+        ],
       });
       expect(store.getState().models.apps.legacy).toEqual(legacyApp);
       expect(store.getState().models.apps.piazza).toEqual(piazzaApp);
diff --git a/src/pages-and-resources/discussions/data/slice.js b/src/pages-and-resources/discussions/data/slice.js
index 49092f150..e6dcfa0a6 100644
--- a/src/pages-and-resources/discussions/data/slice.js
+++ b/src/pages-and-resources/discussions/data/slice.js
@@ -23,6 +23,7 @@ const slice = createSlice({
     saveStatus: SAVED,
     // ValidationError is the Flag that represents a form validation status.
     hasValidationError: false,
+    discussionTopicIds: [],
   },
   reducers: {
     loadApps: (state, { payload }) => {
@@ -31,6 +32,7 @@ const slice = createSlice({
       state.featureIds = payload.featureIds;
       state.status = LOADED;
       state.saveStatus = SAVED;
+      state.discussionTopicIds = payload.discussionTopicIds;
     },
     selectApp: (state, { payload }) => {
       const { appId } = payload;
@@ -48,6 +50,9 @@ const slice = createSlice({
       const { hasError } = payload;
       state.hasValidationError = hasError;
     },
+    updateDiscussionTopicIds: (state, { payload }) => {
+      state.discussionTopicIds = payload;
+    },
   },
 });
 
@@ -57,6 +62,7 @@ export const {
   updateStatus,
   updateSaveStatus,
   updateValidationStatus,
+  updateDiscussionTopicIds,
 } = slice.actions;
 
 export const {
diff --git a/src/pages-and-resources/discussions/data/thunks.js b/src/pages-and-resources/discussions/data/thunks.js
index 5f4248ecc..246842ca2 100644
--- a/src/pages-and-resources/discussions/data/thunks.js
+++ b/src/pages-and-resources/discussions/data/thunks.js
@@ -1,5 +1,7 @@
 import { history } from '@edx/frontend-platform';
-import { addModel, addModels } from '../../../generic/model-store';
+import {
+  addModel, addModels, updateModels,
+} from '../../../generic/model-store';
 
 import { getApps, postAppConfig } from './api';
 import {
@@ -22,15 +24,20 @@ export function fetchApps(courseId) {
         features,
         activeAppId,
         appConfig,
+        discussionTopicIds,
+        discussionTopics,
       } = await getApps(courseId);
 
       dispatch(addModels({ modelType: 'apps', models: apps }));
       dispatch(addModels({ modelType: 'features', models: features }));
       dispatch(addModel({ modelType: 'appConfigs', model: appConfig }));
+      dispatch(addModels({ modelType: 'discussionTopics', models: discussionTopics }));
+
       dispatch(loadApps({
         activeAppId,
         appIds: apps.map(app => app.id),
         featureIds: features.map(feature => feature.id),
+        discussionTopicIds,
       }));
     } catch (error) {
       if (error.response && error.response.status === 403) {
@@ -52,15 +59,20 @@ export function saveAppConfig(courseId, appId, drafts, successPath) {
         features,
         activeAppId,
         appConfig,
+        discussionTopicIds,
+        discussionTopics,
       } = await postAppConfig(courseId, appId, drafts);
 
       dispatch(addModels({ modelType: 'apps', models: apps }));
       dispatch(addModels({ modelType: 'features', models: features }));
       dispatch(addModel({ modelType: 'appConfigs', model: appConfig }));
+      dispatch(addModels({ modelType: 'discussionTopics', models: discussionTopics }));
+
       dispatch(loadApps({
         activeAppId,
         appIds: apps.map(app => app.id),
         featureIds: features.map(feature => feature.id),
+        discussionTopicIds,
       }));
       dispatch(updateSaveStatus({ status: SAVED }));
       // Note that we redirect here to avoid having to work with the promise over in AppConfigForm.
@@ -76,3 +88,9 @@ export function saveAppConfig(courseId, appId, drafts, successPath) {
     }
   };
 }
+
+export function updatedDiscussionTopics(payload) {
+  return async (dispatch) => {
+    dispatch(updateModels({ modelType: 'discussionTopics', models: payload }));
+  };
+}
diff --git a/src/pages-and-resources/discussions/factories/mockApiResponses.js b/src/pages-and-resources/discussions/factories/mockApiResponses.js
index a6b8aaac1..585c8e5ed 100644
--- a/src/pages-and-resources/discussions/factories/mockApiResponses.js
+++ b/src/pages-and-resources/discussions/factories/mockApiResponses.js
@@ -48,6 +48,15 @@ export const legacyApiResponse = {
   plugin_configuration: {
     allow_anonymous: false,
     allow_anonymous_to_peers: false,
+    always_divide_inline_discussions: false,
+    available_division_schemes: ['enrollment_track'],
+    discussion_topics: {
+      Edx: { id: '13f106c6-6735-4e84-b097-0456cff55960' },
+      General: { id: 'course-generated-id-123-client-made-this-up' },
+    },
+    divided_course_wide_discussions: [],
+    divided_inline_discussions: [],
+    division_scheme: 'none',
     // Note, this gets stringified when normalized into the app, but the API returns it as an
     // actual array.  Argh.
     discussion_blackouts: [],