Hello Dan,

Thank you for purchasing our plugin,

The function that controls the purchase list CSV download is b2bkingdownloadpurchaselist() in class-b2bking.php

There are 2 hooks there through which you can add a custom product column. I wrote a snippet example:

add_filter('b2bking_list_download_columns_header', function($columns){
    array_push($columns, 'Stock quantity');
    return $columns;
}, 10, 1);
add_filter('b2bking_list_download_columns_items', function($data, $list_item){
    
    $item = explode(':', $list_item);
    $product_id = $item[0];
    $stock_quantity = get_post_meta($product_id, '_stock', true);
    array_push($data, $stock_quantity);
    return $data;
}, 10, 2);

This can be added to your site's functions.php or to any snippets plugin.

It will add a "Stock quantity" column there.

Kind regards,

Stefan