diff --git a/src/Domains/Connectors/Zoho/DataTransferObject/ZohoLead.php b/src/Domains/Connectors/Zoho/DataTransferObject/ZohoLead.php
index 82d7cc1ca..f66681f9a 100644
--- a/src/Domains/Connectors/Zoho/DataTransferObject/ZohoLead.php
+++ b/src/Domains/Connectors/Zoho/DataTransferObject/ZohoLead.php
@@ -59,8 +59,7 @@ public static function fromLead(Lead $lead): self
     public function toArray(): array
     {
         $data = parent::toArray();
-
-        unset($data['additionalFields']);
+        //unset($data['additionalFields']);
 
         return $data;
     }
@@ -96,7 +95,9 @@ protected static function mapProperties(array $map, array &$data, array $entity)
                 $value = $creditScore[(int) $value] ?? $value;
             }
 
-            $data[$name] = $value;
+            if ($value !== null) {
+                $data[$name] = $value;
+            }
         }
     }
 
diff --git a/src/Domains/Connectors/Zoho/Workflows/ZohoLeadActivity.php b/src/Domains/Connectors/Zoho/Workflows/ZohoLeadActivity.php
index 0a3e38c21..41641c370 100644
--- a/src/Domains/Connectors/Zoho/Workflows/ZohoLeadActivity.php
+++ b/src/Domains/Connectors/Zoho/Workflows/ZohoLeadActivity.php
@@ -19,6 +19,9 @@
 use Webleit\ZohoCrmApi\Modules\Leads as ZohoLeadModule;
 use Workflow\Activity;
 
+/**
+ * @todo refactor move core logic to SyncLeadWithZohoAction
+ */
 class ZohoLeadActivity extends Activity implements WorkflowActivityInterface
 {
     use KanvasJobsTrait;