From 6089dbf499b65d1461681252201110790a8f329a Mon Sep 17 00:00:00 2001
From: Michael McAndrew <michael@3sd.io>
Date: Mon, 30 Aug 2021 15:59:30 +0100
Subject: [PATCH] better target multivalue checkbox and multiselect import
 validation

---
 CRM/Contact/Import/Parser/Contact.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CRM/Contact/Import/Parser/Contact.php b/CRM/Contact/Import/Parser/Contact.php
index 70da80437072..bc5c30579728 100644
--- a/CRM/Contact/Import/Parser/Contact.php
+++ b/CRM/Contact/Import/Parser/Contact.php
@@ -1068,7 +1068,7 @@ public static function isErrorInCustomData($params, &$errorMessage, $csType = NU
           }
 
           // check for values for custom fields for checkboxes and multiselect
-          if ($isSerialized) {
+          if ($isSerialized && $dataType != 'ContactReference') {
             $value = trim($value);
             $value = str_replace('|', ',', $value);
             $mulValues = explode(',', $value);