diff --git a/e2e-tests/cypress/tests/integration/channels/messaging/message_deletion_spec.js b/e2e-tests/cypress/tests/integration/channels/messaging/message_deletion_spec.js
index c9e4c09fa0a..1a55846c58b 100644
--- a/e2e-tests/cypress/tests/integration/channels/messaging/message_deletion_spec.js
+++ b/e2e-tests/cypress/tests/integration/channels/messaging/message_deletion_spec.js
@@ -43,10 +43,10 @@ describe('Message deletion', () => {
                 cy.get('#deletePostModal').should('be.visible');
 
                 // * Check that confirmation dialog contains correct text
-                cy.get('#deletePostModal').should('contain', 'Are you sure you want to delete this Post?');
+                cy.get('#deletePostModal').should('contain', 'Are you sure you want to delete this message?');
 
                 // * Check that confirmation dialog shows that the post has one comment on it
-                cy.get('#deletePostModal').should('contain', 'This post has 1 comment on it.');
+                cy.get('#deletePostModal').should('contain', 'This message has 1 comment on it.');
 
                 // # Confirm deletion.
                 cy.get('#deletePostModalButton').click();
diff --git a/e2e-tests/cypress/tests/integration/playbooks/channels/broadcast_spec.js b/e2e-tests/cypress/tests/integration/playbooks/channels/broadcast_spec.js
index 066ab673429..fbf84309b43 100644
--- a/e2e-tests/cypress/tests/integration/playbooks/channels/broadcast_spec.js
+++ b/e2e-tests/cypress/tests/integration/playbooks/channels/broadcast_spec.js
@@ -379,10 +379,10 @@ const deleteLatestPostRoot = (testTeam, channelName) => {
 
         // * Check that confirmation dialog contains correct text
         cy.get('#deletePostModal').
-            should('contain', 'Are you sure you want to delete this Post?');
+            should('contain', 'Are you sure you want to delete this message?');
 
         // * Check that confirmation dialog shows that the post has one comment on it
-        cy.get('#deletePostModal').should('contain', 'This post has 1 comment on it.');
+        cy.get('#deletePostModal').should('contain', 'This message has 1 comment on it.');
 
         // # Confirm deletion.
         cy.get('#deletePostModalButton').click();
diff --git a/webapp/channels/src/components/delete_post_modal/__snapshots__/delete_post_modal.test.tsx.snap b/webapp/channels/src/components/delete_post_modal/__snapshots__/delete_post_modal.test.tsx.snap
index 32d1236978a..3f856f662e8 100644
--- a/webapp/channels/src/components/delete_post_modal/__snapshots__/delete_post_modal.test.tsx.snap
+++ b/webapp/channels/src/components/delete_post_modal/__snapshots__/delete_post_modal.test.tsx.snap
@@ -43,16 +43,8 @@ exports[`components/delete_post_modal should match snapshot for delete_post_moda
       id="deletePostModalLabel"
     >
       <MemoizedFormattedMessage
-        defaultMessage="Confirm {term} Delete"
-        id="delete_post.confirm"
-        values={
-          Object {
-            "term": <Memo(MemoizedFormattedMessage)
-              defaultMessage="Post"
-              id="delete_post.post"
-            />,
-          }
-        }
+        defaultMessage="Confirm Post Delete"
+        id="delete_post.confirm_post"
       />
     </ModalTitle>
   </ModalHeader>
@@ -61,16 +53,9 @@ exports[`components/delete_post_modal should match snapshot for delete_post_moda
     componentClass="div"
   >
     <MemoizedFormattedMessage
-      defaultMessage="Are you sure you want to delete this {term}?"
-      id="delete_post.question"
-      values={
-        Object {
-          "term": <Memo(MemoizedFormattedMessage)
-            defaultMessage="Post"
-            id="delete_post.post"
-          />,
-        }
-      }
+      defaultMessage="Are you sure you want to delete this message?"
+      id="delete_post.question_post"
+      tagName="p"
     />
   </ModalBody>
   <ModalFooter
@@ -146,16 +131,8 @@ exports[`components/delete_post_modal should match snapshot for delete_post_moda
       id="deletePostModalLabel"
     >
       <MemoizedFormattedMessage
-        defaultMessage="Confirm {term} Delete"
-        id="delete_post.confirm"
-        values={
-          Object {
-            "term": <Memo(MemoizedFormattedMessage)
-              defaultMessage="Post"
-              id="delete_post.post"
-            />,
-          }
-        }
+        defaultMessage="Confirm Post Delete"
+        id="delete_post.confirm_post"
       />
     </ModalTitle>
   </ModalHeader>
@@ -164,30 +141,20 @@ exports[`components/delete_post_modal should match snapshot for delete_post_moda
     componentClass="div"
   >
     <MemoizedFormattedMessage
-      defaultMessage="Are you sure you want to delete this {term}?"
-      id="delete_post.question"
+      defaultMessage="Are you sure you want to delete this message?"
+      id="delete_post.question_post"
+      tagName="p"
+    />
+    <MemoizedFormattedMessage
+      defaultMessage="This message has {count, number} {count, plural, one {comment} other {comments}} on it."
+      id="delete_post.warning"
+      tagName="p"
       values={
         Object {
-          "term": <Memo(MemoizedFormattedMessage)
-            defaultMessage="Post"
-            id="delete_post.post"
-          />,
+          "count": 1,
         }
       }
     />
-    <div
-      className="mt-2"
-    >
-      <MemoizedFormattedMessage
-        defaultMessage="This post has {count, number} {count, plural, one {comment} other {comments}} on it."
-        id="delete_post.warning"
-        values={
-          Object {
-            "count": 1,
-          }
-        }
-      />
-    </div>
   </ModalBody>
   <ModalFooter
     bsClass="modal-footer"
@@ -262,16 +229,8 @@ exports[`components/delete_post_modal should match snapshot for post with 1 comm
       id="deletePostModalLabel"
     >
       <MemoizedFormattedMessage
-        defaultMessage="Confirm {term} Delete"
-        id="delete_post.confirm"
-        values={
-          Object {
-            "term": <Memo(MemoizedFormattedMessage)
-              defaultMessage="Comment"
-              id="delete_post.comment"
-            />,
-          }
-        }
+        defaultMessage="Confirm Comment Delete"
+        id="delete_post.confirm_comment"
       />
     </ModalTitle>
   </ModalHeader>
@@ -280,16 +239,9 @@ exports[`components/delete_post_modal should match snapshot for post with 1 comm
     componentClass="div"
   >
     <MemoizedFormattedMessage
-      defaultMessage="Are you sure you want to delete this {term}?"
-      id="delete_post.question"
-      values={
-        Object {
-          "term": <Memo(MemoizedFormattedMessage)
-            defaultMessage="Comment"
-            id="delete_post.comment"
-          />,
-        }
-      }
+      defaultMessage="Are you sure you want to delete this comment?"
+      id="delete_post.question_comment"
+      tagName="p"
     />
   </ModalBody>
   <ModalFooter
diff --git a/webapp/channels/src/components/delete_post_modal/delete_post_modal.test.tsx b/webapp/channels/src/components/delete_post_modal/delete_post_modal.test.tsx
index ff491b23585..a91b6d3973c 100644
--- a/webapp/channels/src/components/delete_post_modal/delete_post_modal.test.tsx
+++ b/webapp/channels/src/components/delete_post_modal/delete_post_modal.test.tsx
@@ -30,6 +30,7 @@ describe('components/delete_post_modal', () => {
         pending_post_id: '',
         reply_count: 0,
         metadata: {} as PostMetadata,
+        remote_id: '',
     };
 
     const baseProps = {
@@ -198,4 +199,21 @@ describe('components/delete_post_modal', () => {
         }
         expect(baseProps.onExited).toHaveBeenCalledTimes(1);
     });
+
+    test('should warn about remote post deletion', () => {
+        const props = {
+            ...baseProps,
+            post: {
+                ...post,
+                remote_id: 'remoteclusterid1',
+            },
+        };
+
+        const wrapper = shallow<DeletePostModal>(
+            <DeletePostModal {...props}/>,
+        );
+
+        expect(wrapper.find('SharedChannelPostDeleteWarning')).toBeDefined();
+        console.log(wrapper.find('SharedChannelPostDeleteWarning').debug());
+    });
 });
diff --git a/webapp/channels/src/components/delete_post_modal/delete_post_modal.tsx b/webapp/channels/src/components/delete_post_modal/delete_post_modal.tsx
index 7b43bcf041d..6b010bf95b7 100644
--- a/webapp/channels/src/components/delete_post_modal/delete_post_modal.tsx
+++ b/webapp/channels/src/components/delete_post_modal/delete_post_modal.tsx
@@ -3,13 +3,15 @@
 
 import React from 'react';
 import {Modal} from 'react-bootstrap';
-import {FormattedMessage} from 'react-intl';
+import {FormattedMessage, useIntl} from 'react-intl';
 import {matchPath} from 'react-router-dom';
 
 import type {Post} from '@mattermost/types/posts';
 
 import type {ActionResult} from 'mattermost-redux/types/actions';
 
+import SectionNotice from 'components/section_notice';
+
 import {getHistory} from 'utils/browser_history';
 import * as UserAgent from 'utils/user_agent';
 
@@ -101,34 +103,56 @@ export default class DeletePostModal extends React.PureComponent<Props, State> {
         }
     };
 
+    getTitle = () => {
+        return this.props.post.root_id ? (
+            <FormattedMessage
+                id='delete_post.confirm_comment'
+                defaultMessage='Confirm Comment Delete'
+            />
+        ) : (
+            <FormattedMessage
+                id='delete_post.confirm_post'
+                defaultMessage='Confirm Post Delete'
+            />
+        );
+    };
+
+    getPrompt = () => {
+        return this.props.post.root_id ? (
+            <FormattedMessage
+                id='delete_post.question_comment'
+                defaultMessage='Are you sure you want to delete this comment?'
+                tagName='p'
+            />
+        ) : (
+            <FormattedMessage
+                id='delete_post.question_post'
+                defaultMessage='Are you sure you want to delete this message?'
+                tagName='p'
+            />
+        );
+    };
+
     render() {
         let commentWarning: React.ReactNode = '';
+        let remoteWarning: React.ReactNode = '';
 
         if (this.props.commentCount > 0 && this.props.post.root_id === '') {
             commentWarning = (
-                <div className='mt-2'>
-                    <FormattedMessage
-                        id='delete_post.warning'
-                        defaultMessage='This post has {count, number} {count, plural, one {comment} other {comments}} on it.'
-                        values={{
-                            count: this.props.commentCount,
-                        }}
-                    />
-                </div>
+                <FormattedMessage
+                    id='delete_post.warning'
+                    defaultMessage='This message has {count, number} {count, plural, one {comment} other {comments}} on it.'
+                    values={{
+                        count: this.props.commentCount,
+                    }}
+                    tagName='p'
+                />
             );
         }
 
-        const postTerm = this.props.post.root_id ? (
-            <FormattedMessage
-                id='delete_post.comment'
-                defaultMessage='Comment'
-            />
-        ) : (
-            <FormattedMessage
-                id='delete_post.post'
-                defaultMessage='Post'
-            />
-        );
+        if (this.props.post.remote_id) {
+            remoteWarning = <SharedChannelPostDeleteWarning post={this.props.post}/>;
+        }
 
         return (
             <Modal
@@ -146,24 +170,13 @@ export default class DeletePostModal extends React.PureComponent<Props, State> {
                         componentClass='h1'
                         id='deletePostModalLabel'
                     >
-                        <FormattedMessage
-                            id='delete_post.confirm'
-                            defaultMessage='Confirm {term} Delete'
-                            values={{
-                                term: (postTerm),
-                            }}
-                        />
+                        {this.getTitle()}
                     </Modal.Title>
                 </Modal.Header>
                 <Modal.Body>
-                    <FormattedMessage
-                        id='delete_post.question'
-                        defaultMessage='Are you sure you want to delete this {term}?'
-                        values={{
-                            term: (postTerm),
-                        }}
-                    />
+                    {this.getPrompt()}
                     {commentWarning}
+                    {remoteWarning}
                 </Modal.Body>
                 <Modal.Footer>
                     <button
@@ -194,3 +207,30 @@ export default class DeletePostModal extends React.PureComponent<Props, State> {
         );
     }
 }
+
+const SharedChannelPostDeleteWarning = ({post}: {post: Post}) => {
+    const {formatMessage} = useIntl();
+
+    const text = post.root_id ? (
+        formatMessage({
+            id: 'delete_post.shared_channel_warning.message_comment',
+            defaultMessage: 'This comment originated from a shared channel in another workspace. Deleting it here won\'t remove it from the channel in the other workspace.',
+        })
+    ) : (
+        formatMessage({
+            id: 'delete_post.shared_channel_warning.message_post',
+            defaultMessage: 'This message originated from a shared channel in another workspace. Deleting it here won\'t remove it from the channel in the other workspace.',
+        })
+    );
+
+    return (
+        <SectionNotice
+            type='warning'
+            title={formatMessage({
+                id: 'delete_post.shared_channel_warning.title',
+                defaultMessage: 'Shared Channel',
+            })}
+            text={text}
+        />
+    );
+};
diff --git a/webapp/channels/src/i18n/en.json b/webapp/channels/src/i18n/en.json
index 5165a3391a4..5eac286e362 100644
--- a/webapp/channels/src/i18n/en.json
+++ b/webapp/channels/src/i18n/en.json
@@ -3446,12 +3446,15 @@
   "delete_channel.question": "This will archive the channel from the team and remove it from the user interface. Archived channels can be unarchived if needed again. \n \nAre you sure you wish to archive the {display_name} channel?",
   "delete_channel.viewArchived.question": "This will archive the channel from the team. Channel contents will still be accessible by channel members.\n \nAre you sure you wish to archive the **{display_name}** channel?",
   "delete_post.cancel": "Cancel",
-  "delete_post.comment": "Comment",
-  "delete_post.confirm": "Confirm {term} Delete",
+  "delete_post.confirm_comment": "Confirm Comment Delete",
+  "delete_post.confirm_post": "Confirm Post Delete",
   "delete_post.del": "Delete",
-  "delete_post.post": "Post",
-  "delete_post.question": "Are you sure you want to delete this {term}?",
-  "delete_post.warning": "This post has {count, number} {count, plural, one {comment} other {comments}} on it.",
+  "delete_post.question_comment": "Are you sure you want to delete this comment?",
+  "delete_post.question_post": "Are you sure you want to delete this message?",
+  "delete_post.shared_channel_warning.message_comment": "This comment originated from a shared channel in another workspace. Deleting it here won't remove it from the channel in the other workspace.",
+  "delete_post.shared_channel_warning.message_post": "This message originated from a shared channel in another workspace. Deleting it here won't remove it from the channel in the other workspace.",
+  "delete_post.shared_channel_warning.title": "Shared Channel",
+  "delete_post.warning": "This message has {count, number} {count, plural, one {comment} other {comments}} on it.",
   "delete_success_modal.button_text": "Go to mattermost.com",
   "demote_to_user_modal.demote": "Demote",
   "demote_to_user_modal.desc": "This action demotes the user {username} to a guest. It will restrict the user's ability to join public channels and interact with users outside of the channels they are currently members of. Are you sure you want to demote user {username} to guest?",
diff --git a/webapp/platform/types/src/posts.ts b/webapp/platform/types/src/posts.ts
index 3634febc50d..6dc71d51351 100644
--- a/webapp/platform/types/src/posts.ts
+++ b/webapp/platform/types/src/posts.ts
@@ -99,6 +99,7 @@ export type Post = {
     message_source?: string;
     is_following?: boolean;
     exists?: boolean;
+    remote_id?: string;
 };
 
 export type PostState = 'DELETED';