diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -2552,6 +2552,36 @@
             idx($groups, $field->getFieldKey(), array()));
         }
         break;
+
+      case PhabricatorTransactions::TYPE_EDGE:
+        if (!$object instanceof PhabricatorCustomFieldInterface) {
+          break;
+        }
+
+        $groups = array();
+        foreach ($xactions as $xaction) {
+          $groups[$xaction->getMetadataValue('edge:type')][] = $xaction;
+        }
+
+        $field_list = PhabricatorCustomField::getObjectFields(
+          $object,
+          PhabricatorCustomField::ROLE_EDIT);
+        $field_list->setViewer($this->getActor());
+
+        $role_xactions = PhabricatorCustomField::ROLE_APPLICATIONTRANSACTIONS;
+        foreach ($field_list->getFields() as $field) {
+          if (!$field->shouldEnableForRole($role_xactions)) {
+            continue;
+          }
+          $errors[] = $field->validateApplicationTransactions(
+            $this,
+            $type,
+            idx(
+              $groups,
+              $field->getApplicationTransactionEdgeConstant(),
+              array()));
+        }
+        break;
     }
 
     return array_mergev($errors);
diff --git a/src/infrastructure/customfield/field/PhabricatorCustomField.php b/src/infrastructure/customfield/field/PhabricatorCustomField.php
--- a/src/infrastructure/customfield/field/PhabricatorCustomField.php
+++ b/src/infrastructure/customfield/field/PhabricatorCustomField.php
@@ -862,6 +862,32 @@
     return array();
   }
 
+  /**
+   * @task appxaction
+   */
+  public function getApplicationTransactionEdgeType() {
+    if ($this->proxy) {
+      return $this->proxy->getApplicationTransactionEdgeType();
+    }
+    return null;
+  }
+
+  /**
+   * @task appxaction
+   */
+  final public function getApplicationTransactionEdgeConstant() {
+    if ($this->proxy) {
+      return $this->proxy->getApplicationTransactionEdgeConstant();
+    }
+
+    $edge = $this->getApplicationTransactionEdgeType();
+    if ($edge === null) {
+      return null;
+    }
+
+    return $edge->getEdgeConstant();
+  }
+
 
   /**
    * @task appxaction