Version 4.7.23

applications/core/sources/DataLayer/DataLayer.php

@@ -1382,6 +1382,14 @@ HTML,
 				$changes
 			);
 			$changes['custom'] = true;
+			if ( !isset( $properties[$key] ) )
+			{
+				$properties[ $key ] = $changes;
+			}
+			else
+			{
+				array_replace_recursive( $properties[ $key ], $changes );
+			}
 		}
 		else
 		{
@@ -1407,9 +1415,9 @@ HTML,
 
 		/* These should never be set in the setting since other code assumes these properties are what's specified in the arrays */
 		$properties[$key] = $properties[$key] ?? array();
-		unset( $changes['pii'] );
 		if ( !( $properties[$key]['custom'] ?? 0 ) )
 		{
+			unset( $changes['pii'] );
 			unset( $changes['event_keys'] );
 			unset( $changes['description'] );
 			unset( $changes['short'] );