Change Document Title

Hi,

I am trying to change the “untitled” document title, but when I was trying the order number on the PDF file be gone.

Here’s my code.

add_filter( ‘wpo_wcpdf_packing_slip_title’, function( $title, $document ) {
if ( empty( $document->order ) ) { return; }
$order_number = $document->order->get_id();
$title = ‘Packing Slip – ‘ . ‘#’ . $order_number;
return $title;
}, 10, 2 );

https://prnt.sc/Q9vt6q6u0eD3

This is order number will be gone when I try to change the “untitled”
https://prnt.sc/h4SFciL_F7GD

This is the code I am trying to use.

add_filter( ‘wpo_wcpdf_packing_slip_title’, ‘wpo_wcpdf_packing_slip_title’, 10, 2 ); function wpo_wcpdf_packing_slip_title ( $title, $document ) { if ( empty( $document->order ) ) { return; } $order_number = $document->order->get_id(); $title = ‘Packing Slip – ‘ . ‘#’ . $order_number; return $title; }

Thank you!
Christian