diff --git a/core/config.class.inc.php b/core/config.class.inc.php
index 7faec4710..f454c8caf 100644
--- a/core/config.class.inc.php
+++ b/core/config.class.inc.php
@@ -1412,6 +1412,19 @@ class Config
 		return $this->m_aSettings[$sPropCode]['value'];
 	}
 
+	/**
+	 * Return true is the $sPropCode parameter has been customized, false if it is the default value.
+	 *
+	 * @param string $sPropCode
+	 *
+	 * @return bool
+	 * @since 3.0.0
+	 */
+	public function IsCustomValue(string $sPropCode): bool
+	{
+		return $this->m_aSettings[$sPropCode]['value'] !== $this->m_aSettings[$sPropCode]['default'];
+	}
+
 	/**
 	 * Event log options (see LOG_... definition)
 	 */