Merge tags for invoice number

Hi @abcwebsites,

With the following code snippet you can add the {invoice_number} placeholder:

add_filter( 'woocommerce_email_format_string' , 'wpo_wcpdf_email_placeholders', 20, 2 );
function wpo_wcpdf_email_placeholders( $string, $email ) {
    if ( strpos( $string, '{invoice_number}' ) !== false && !empty($email->object) && $invoice = wcpdf_get_invoice( $email->object, true ) ) {
        return str_replace( '{invoice_number}', $invoice->get_number()->get_formatted(), $string );
    }  
    return $string;
}

This code snippet should be added to the functions.php of your child theme or with a plugin like Code Snippets. If you haven’t worked with code snippets or functions.php before please read this: How to use filters

• This reply was modified 5 years ago by kluver.

Works perfectly, thank you.