diff --git a/add_demand.php b/add_demand.php
index b3f4651..11e203b 100644
--- a/add_demand.php
+++ b/add_demand.php
@@ -49,6 +49,8 @@ date_default_timezone_set('Europe/Amsterdam');
           Minimum required pieces<br>
           <input type='number' name='piecesMin' value='' required><br>
           <br>
+          Delivery Date in YYYY-MM-DD format<br>
+          <input type='date' name='deliveryDate' value='' required><br>
           Description<br>
           <textarea rows='6' cols='40' name='text' required></textarea><br>
           <button type='submit' name='submit'>SUBMIT</button>
diff --git a/edit_demand.php b/edit_demand.php
index 4968be7..fd3972f 100644
--- a/edit_demand.php
+++ b/edit_demand.php
@@ -38,6 +38,7 @@ date_default_timezone_set('Europe/Amsterdam');
       $demandId = $_POST['demandId'];
       $piecesMax = $_POST['piecesMax'];
       $piecesMin = $_POST['piecesMin'];
+      $deliveryDate = $_POST['deliveryDate'];
       $title= $_POST['title'];
       $text = $_POST['text'];
 
@@ -48,11 +49,13 @@ date_default_timezone_set('Europe/Amsterdam');
           Maximum required pieces<br/>
           <input type='number' name='piecesMax' value='".$piecesMax."'> <br />
           Minimum required pieces<br/>
-          <input type='number' name='piecesMin' value='".$piecesMin."'>
+          <input type='number' name='piecesMin' value='".$piecesMin."'><br>
+          Delivery Date in YYYY-MM-DD format<br>
+          <input type='date' name='deliveryDate' value='".$deliveryDate."'><br>
           <br /> Description<br/>
           <textarea name='text'>".$text."</textarea><br />
           <button type='submit' name='edit'>Edit</button>
-      </form>";
+          </form>";
       ?>
   </div>
 </body>
diff --git a/functions.php b/functions.php
index 05ed8f8..aaf7507 100644
--- a/functions.php
+++ b/functions.php
@@ -77,6 +77,7 @@ function post_demand ()
         $piecesMax = $_POST['piecesMax'];
         $piecesMin = $_POST['piecesMin'];
         $qualityId = $_POST['quality'];
+        $deliveryDate = $_POST['deliveryDate'];
         $title = $_POST['title'];
         $text = $_POST['text'];
         // Inserts Data into Database
@@ -86,9 +87,10 @@ function post_demand ()
                   </strong>";
         } else {
             $sql = "INSERT INTO demands (piecesMax, piecesMin, demandText,
-                                        demandTitle, userId, qualityId)
+                                        demandTitle, userId, deliveryDate,
+                                        qualityId)
                     VALUES ('$piecesMax', '$piecesMin', '$text', '$title',
-                            '$userId', '$qualityId')";
+                            '$userId', '$deliveryDate', '$qualityId')";
             $result = mysqli_query($con, $sql) or die(mysqli_error($con));
         }
     }
@@ -121,6 +123,7 @@ function get_demand_titles ()
         <input type='hidden' name='demandId' value='".$row['demandId']."'>
         <input type='hidden' name='piecesMax' value='".$row['piecesMax']."'>
         <input type='hidden' name='piecesMin' value='".$row['piecesMin']."'>
+        <input type='hidden' name='deliveryDate' value='".$row['deliveryDate']."'>
         <input type='hidden' name='title' value='".$row['demandTitle']."'>
         <input type='hidden' name='text' value='".$row['demandText']."'>
         <button>Edit</button>
@@ -138,6 +141,7 @@ function edit_demand ()
         $demandId = $_POST['demandId'];
         $piecesMax = $_POST['piecesMax'];
         $piecesMin = $_POST['piecesMin'];
+        $deliveryDate = $_POST['deliveryDate'];
         $title = $_POST['title'];
         $text = $_POST['text'];
 
@@ -151,7 +155,8 @@ function edit_demand ()
                         SET piecesMax='$piecesMax',
                             piecesMin='$piecesMin',
                             demandTitle='$title',
-                            demandText='$text'
+                            demandText='$text',
+                            deliveryDate='$deliveryDate'
                         WHERE demandId='$demandId'";
             $result = mysqli_query($con, $sql) or die(mysqli_error($con));
             header("Location: board.php");
@@ -194,13 +199,33 @@ function show_demand ()
     echo "<strong>Maximum required pieces: </strong>" . $demand_rows->piecesMax;
     echo "<br>
           <br>";
-    echo "<strong>Minimumrequired pieces: </strong>" . $demand_rows->piecesMin;
+    echo "<strong>Minimum required pieces: </strong>" . $demand_rows->piecesMin;
     echo "<br>
           <br>";
-    echo "<strong>Quality: </strong>" . $quality_rows->qualityName;
+    echo "<strong>Desired Date of Delivery: </strong>" . $demand_rows->deliveryDate;
+    echo "<br>
+          <br>";
+    echo "<strong>Desired Quality: </strong>" . $quality_rows->qualityName;
     echo "<br>
           <br>
           <strong>Description:</strong><br>";
     echo $demand_rows->demandText;
 }
+
+function post_offer()
+{
+    if (isset($_POST['submit'])) {
+        global $con;
+        $userId = get_userid();
+        $pieces = $_POST['pieces'];
+        $price = $_POST['price'];
+        $qualityId = $_POST['quality'];
+        $text = $_POST['text'];
+        // Inserts Data into Database
+        $sql = "INSERT INTO offers (pieces, text, price, userId, qualityId)
+               VALUES ('$pieces', '$text', '$price', '$userId', '$qualityId')";
+        $result = mysqli_query($con, $sql) or die(mysqli_error($con));
+    }
+}
+
 ?>
diff --git a/show_demand.php b/show_demand.php
index fc4c804..97dc1d6 100644
--- a/show_demand.php
+++ b/show_demand.php
@@ -31,5 +31,9 @@ include 'functions.php';
         show_demand();
       ?>
     </div>
+    <br>
+    <form method= 'POST' action='add_offer.php'>
+        <button>Post Offer</button>
+    </form>
 </body>
 </html>
diff --git a/sql/create_db.sql b/sql/create_db.sql
index 019c145..b704731 100644
--- a/sql/create_db.sql
+++ b/sql/create_db.sql
@@ -43,6 +43,7 @@ CREATE TABLE if not exists `demands` (
   `piecesMin` int(11) NOT NULL,
   `piecesMax` int(11) DEFAULT NULL,
   `date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 
+  `deliveryDate` varchar(10) NOT NULL, 
   `qualityId` int(11) NOT NULL,
   `userId` int(11) NOT NULL,
   `tagId` int(11) NULL,
@@ -62,8 +63,11 @@ CREATE TABLE if not exists `offers` (
   `delivery` bool NOT NULL,
   `date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 
   `userId` int(11) NOT NULL,
+  `qualityId` int(11) NOT NULL,
    CONSTRAINT `fk_offers_userId`
-        FOREIGN KEY (userId) REFERENCES users (userId)
+        FOREIGN KEY (userId) REFERENCES users (userId),
+    CONSTRAINT `fk_offers_qualityId`
+        FOREIGN KEY (qualityId) REFERENCES quality (qualityId)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;