diff --git a/src/Controller/CustomerTagController.php b/src/Controller/CustomerTagController.php
index ab4178f5..680b9ae6 100644
--- a/src/Controller/CustomerTagController.php
+++ b/src/Controller/CustomerTagController.php
@@ -139,7 +139,8 @@ class CustomerTagController extends Controller
         $obj = new CustomerTag();
 
         $obj->setID($req->request->get('id'))
-            ->setName($req->request->get('name'));
+            ->setName($req->request->get('name'))
+            ->setTagDetails($req->request->get('tag_details'));
 
         // validate
         $errors = $validator->validate($obj);
@@ -206,7 +207,8 @@ class CustomerTagController extends Controller
             throw $this->createNotFoundException('The item does not exist');
 
         $obj->setID($req->request->get('id'))
-            ->setName($req->request->get('name'));
+            ->setName($req->request->get('name'))
+            ->setTagDetails($req->request->get('tag_details'));
 
         // validate
         $errors = $validator->validate($obj);
diff --git a/src/Entity/CustomerTag.php b/src/Entity/CustomerTag.php
index aa80e2e7..6aa506da 100644
--- a/src/Entity/CustomerTag.php
+++ b/src/Entity/CustomerTag.php
@@ -33,10 +33,17 @@ class CustomerTag
      */
     protected $customers;
 
+    // tag details
+    /**
+     * @ORM\Column(type="json")
+     */
+    protected $tag_details;
+
     public function __construct()
     {
         $this->date_create = new DateTime();
         $this->customers =  new ArrayCollection();
+        $this->tag_details = [];
     }
 
     public function getID()
@@ -83,4 +90,30 @@ class CustomerTag
     {
         return $this->customers;
     }
+
+    public function addTagDetails($id, $value)
+    {
+        $this->tag_details[$id] = $value;
+        return $this;
+    }
+
+    public function setTagDetails($tag_details)
+    {
+        $this->tag_details = $tag_details;
+        return $this;
+    }
+
+    public function getTagDetails($id)
+    {
+        // return null if we don't have it
+        if (!isset($this->tag_details[$id]))
+            return null;
+
+        return $this->tag_details[$id];
+    }
+
+    public function getAllTagDetails()
+    {
+        return $this->tag_details;
+    }
 }
diff --git a/templates/customer-tag/form.html.twig b/templates/customer-tag/form.html.twig
index ce574a44..778378f6 100644
--- a/templates/customer-tag/form.html.twig
+++ b/templates/customer-tag/form.html.twig
@@ -54,6 +54,16 @@
                                 <div class="form-control-feedback hide" data-field="name"></div>
                             </div>
                         </div>
+                        <div class="form-group m-form__group row no-border">
+                            <div class="col-lg-6">
+                                <label for="tag_details" data-field="tag_details">
+                                    Tag Details 
+                                </label>
+                                <input type="text" name="tag_details" class="form-control m-input" value="{{ obj.getAllTagDetails|default('') }}">
+                                <div class="form-control-feedback hide" data-field="tag_details"></div>
+                                <span class="m-form__help">JSON format e.g. {type: 'discount', discount_type: 'percent', ...}</span>
+                            </div>
+                        </div>
                     </div>
                     <div class="m-portlet__foot m-portlet__foot--fit">
                         <div class="m-form__actions m-form__actions--solid m-form__actions--right">