diff --git a/src/DataManager/PairIdInfo.php b/src/DataManager/PairIdInfo.php
index 97f816e1181..098ad139fc2 100644
--- a/src/DataManager/PairIdInfo.php
+++ b/src/DataManager/PairIdInfo.php
@@ -36,7 +36,7 @@ class PairIdInfo extends \Google\Model
    */
   public $cleanRoomIdentifier;
   /**
-   * Optional. This field denotes the percentage of membership match of this
+   * Required. This field denotes the percentage of membership match of this
    * user list with the corresponding publisher's first party data. Must be
    * between 0 and 100 inclusive.
    *
@@ -98,7 +98,7 @@ public function getCleanRoomIdentifier()
     return $this->cleanRoomIdentifier;
   }
   /**
-   * Optional. This field denotes the percentage of membership match of this
+   * Required. This field denotes the percentage of membership match of this
    * user list with the corresponding publisher's first party data. Must be
    * between 0 and 100 inclusive.
    *