diff --git a/packages/concordia-app/src/components/PostCreate/index.jsx b/packages/concordia-app/src/components/PostCreate/index.jsx
index be2ba0b..aadf71d 100644
--- a/packages/concordia-app/src/components/PostCreate/index.jsx
+++ b/packages/concordia-app/src/components/PostCreate/index.jsx
@@ -8,19 +8,29 @@ import PropTypes from 'prop-types';
 import { useTranslation } from 'react-i18next';
 import { useDispatch, useSelector } from 'react-redux';
 import determineKVAddress from '../../utils/orbitUtils';
-import { USER_DATABASE } from '../../constants/OrbitDatabases';
+import { POSTS_DATABASE, USER_DATABASE } from '../../constants/OrbitDatabases';
 import { FETCH_USER_DATABASE } from '../../redux/actions/peerDbReplicationActions';
 import { USER_PROFILE_PICTURE } from '../../constants/UserDatabaseKeys';
-import { breeze } from '../../redux/store';
+import { breeze, drizzle } from '../../redux/store';
 import './styles.css';
+import { TRANSACTION_ERROR, TRANSACTION_SUCCESS } from '../../constants/TransactionStatus';
+import { POST_CONTENT, POST_SUBJECT } from '../../constants/PostsDatabaseKeys';
 
+const { contracts: { Forum: { methods: { createPost } } } } = drizzle;
 const { orbit } = breeze;
 
 const PostCreate = (props) => {
-  const { id: postId, initialPostSubject } = props;
+  const {
+    topicId, postIndexInTopic, initialPostSubject, account,
+  } = props;
+  const transactionStack = useSelector((state) => state.transactionStack);
+  const transactions = useSelector((state) => state.transactions);
   const [postSubject, setPostSubject] = useState(initialPostSubject);
   const [postContent, setPostContent] = useState('');
   const [userProfilePictureUrl, setUserProfilePictureUrl] = useState();
+  const [postSubjectInputEmptySubmit, setPostSubjectInputEmptySubmit] = useState(false);
+  const [postContentInputEmptySubmit, setPostContentInputEmptySubmit] = useState(false);
+  const [createPostCacheSendStackId, setCreatePostCacheSendStackId] = useState('');
   const [posting, setPosting] = useState(false);
   const userAddress = useSelector((state) => state.user.address);
   const users = useSelector((state) => state.orbitData.users);
@@ -68,13 +78,49 @@ const PostCreate = (props) => {
     }
   }, [posting]);
 
+  useEffect(() => {
+    if (posting && transactionStack && transactionStack[createPostCacheSendStackId]
+            && transactions[transactionStack[createPostCacheSendStackId]]) {
+      if (transactions[transactionStack[createPostCacheSendStackId]].status === TRANSACTION_ERROR) {
+        setPosting(false);
+      } else if (transactions[transactionStack[createPostCacheSendStackId]].status === TRANSACTION_SUCCESS) {
+        const {
+          receipt: { events: { PostCreated: { returnValues: { postID: contractPostId } } } },
+        } = transactions[transactionStack[createPostCacheSendStackId]];
+
+        const { stores } = orbit;
+        const postsDb = Object.values(stores).find((store) => store.dbname === POSTS_DATABASE);
+
+        postsDb
+          .put(contractPostId, {
+            [POST_SUBJECT]: postSubject,
+            [POST_CONTENT]: postContent,
+          }, { pin: true })
+          .then(() => {
+            setPostSubject(initialPostSubject);
+            setPostContent('');
+          })
+          .catch((reason) => {
+            console.log(reason);
+          });
+      }
+    }
+  }, [createPostCacheSendStackId, postContent, postSubject, posting, transactionStack, transactions]);
+
   const savePost = useCallback(() => {
-    if (postSubject === '' || postContent === '') {
+    if (postSubject === '') {
+      setPostSubjectInputEmptySubmit(true);
+      return;
+    }
+
+    if (postContent === '') {
+      setPostContentInputEmptySubmit(true);
       return;
     }
 
     setPosting(true);
-  }, [postContent, postSubject]);
+    setCreatePostCacheSendStackId(createPost.cacheSend(...[topicId], { from: account }));
+  }, [account, postContent, postSubject, topicId]);
 
   return (
       <Feed>
@@ -104,11 +150,12 @@ const PostCreate = (props) => {
                             name="postSubject"
                             className="subject-input"
                             size="mini"
+                            error={postSubjectInputEmptySubmit}
                             value={postSubject}
                             onChange={handleInputChange}
                           />
                           <span className="post-summary-meta-index">
-                              {t('post.list.row.post.id', { id: postId })}
+                              {t('post.list.row.post.id', { id: postIndexInTopic })}
                           </span>
                       </div>
                   </Feed.Summary>
@@ -120,6 +167,7 @@ const PostCreate = (props) => {
                             className="content-input"
                             size="mini"
                             rows={4}
+                            error={postContentInputEmptySubmit}
                             value={postContent}
                             onChange={handleInputChange}
                           />
@@ -132,8 +180,8 @@ const PostCreate = (props) => {
                             animated
                             type="button"
                             color="green"
-                            disabled={posting}
-                            onClick={savePost || postSubject === '' || postContent === ''}
+                            disabled={posting || postSubject === '' || postContent === ''}
+                            onClick={savePost}
                           >
                               <Button.Content visible>
                                   {t('post.create.form.send.button')}
@@ -151,7 +199,8 @@ const PostCreate = (props) => {
 };
 
 PostCreate.propTypes = {
-  id: PropTypes.number.isRequired,
+  topicId: PropTypes.number.isRequired,
+  postIndexInTopic: PropTypes.number.isRequired,
   initialPostSubject: PropTypes.string.isRequired,
 };
 
diff --git a/packages/concordia-app/src/components/PostList/PostListRow/index.jsx b/packages/concordia-app/src/components/PostList/PostListRow/index.jsx
index 06fe0a0..1b7e666 100644
--- a/packages/concordia-app/src/components/PostList/PostListRow/index.jsx
+++ b/packages/concordia-app/src/components/PostList/PostListRow/index.jsx
@@ -20,7 +20,9 @@ import { POST_CONTENT, POST_SUBJECT } from '../../../constants/PostsDatabaseKeys
 const { orbit } = breeze;
 
 const PostListRow = (props) => {
-  const { id: postId, postCallHash, loading } = props;
+  const {
+    id: postId, postIndexInTopic, postCallHash, loading,
+  } = props;
   const getPostResults = useSelector((state) => state.contracts.Forum.getPost);
   const [postAuthorAddress, setPostAuthorAddress] = useState(null);
   const [postAuthor, setPostAuthor] = useState(null);
@@ -114,7 +116,7 @@ const PostListRow = (props) => {
                         ? postSubject
                         : <Placeholder><Placeholder.Line length="very long" /></Placeholder>}
                       <span className="post-summary-meta-index">
-                          {t('post.list.row.post.id', { id: postId })}
+                          {t('post.list.row.post.id', { id: postIndexInTopic })}
                       </span>
                   </div>
                   {postAuthor !== null && timeAgo !== null
@@ -133,7 +135,7 @@ const PostListRow = (props) => {
               </Feed.Extra>
           </Feed.Content>
       </Dimmer.Dimmable>
-  ), [loading, postAuthor, postAuthorMeta, postId, postContent, postSubject, t, timeAgo]);
+  ), [loading, postAuthor, postAuthorMeta, postContent, postIndexInTopic, postSubject, t, timeAgo]);
 };
 
 PostListRow.defaultProps = {
@@ -142,6 +144,7 @@ PostListRow.defaultProps = {
 
 PostListRow.propTypes = {
   id: PropTypes.number.isRequired,
+  postIndexInTopic: PropTypes.number.isRequired,
   postCallHash: PropTypes.string,
   loading: PropTypes.bool,
 };
diff --git a/packages/concordia-app/src/components/PostList/index.jsx b/packages/concordia-app/src/components/PostList/index.jsx
index 2c93daf..c4fe149 100644
--- a/packages/concordia-app/src/components/PostList/index.jsx
+++ b/packages/concordia-app/src/components/PostList/index.jsx
@@ -40,12 +40,13 @@ const PostList = (props) => {
       return null;
     }
     return postIds
-      .map((postId) => {
+      .map((postId, index) => {
         const postHash = getPostCallHashes.find((getPostCallHash) => getPostCallHash.id === postId);
 
         return (
             <PostListRow
               id={postId}
+              postIndexInTopic={index + 1}
               key={postId}
               postCallHash={postHash && postHash.hash}
               loading={postHash === undefined}
diff --git a/packages/concordia-app/src/views/Topic/TopicView/index.jsx b/packages/concordia-app/src/views/Topic/TopicView/index.jsx
index 943b804..eb22308 100644
--- a/packages/concordia-app/src/views/Topic/TopicView/index.jsx
+++ b/packages/concordia-app/src/views/Topic/TopicView/index.jsx
@@ -164,7 +164,8 @@ const TopicView = (props) => {
           <PostList postIds={postIds || []} loading={postIds === null} />
           {topicSubject !== null && postIds !== null && (
               <PostCreate
-                id={postIds.length}
+                topicId={topicId}
+                postIndexInTopic={postIds.length + 1}
                 initialPostSubject={topicSubject}
               />
           )}