Disable invoices for COD payment method

Hi @falatoid,

If you have the ​Professional extension, this can be configured right in the PDF invoices settings, in WooCommerce > PDF Invoices > Documents > Invoice > General > Disabled for:

If you are only using the free main plugin, you can achieve this with the following code snippet:

/**
 * PDF Invoices & Packing Slips for WooCommerce
 * Disable invoices for orders paid by Cash on Delivery (COD)
 */
add_filter( 'wpo_wcpdf_document_is_allowed', function( $allowed, $document ) {
    if ( $order = $document->order ?? false  ) {
        if ( $document->exists() ) {
            return $allowed;
        }
        // Apply this behavior only to the PDF Invoice
        if ( $document->type === 'invoice' ) {
            $payment_method = $order->get_payment_method();
            if ( $payment_method === 'cod' ) {
                $allowed = false;
            }
        }
    }
    return $allowed;
}, 10, 2 );

Let me know if you need anything else 😉