for example, I set  "Bulk table message" = BULK TEXT  for one rule and  "Bulk table message" = BULK TEXT2 for another rule

1. Add this code to functions.php and edit it (replace BULK TEXT with your phrases)

add_action('init', function() {
  pll_register_string('bulk-text-1', 'BULK TEXT', 'Advanced dynamic pricing');
  pll_register_string('bulk-text-1', 'BULK TEXT2', 'Advanced dynamic pricing');

add_filter('wdp_format_bulk_table_message', function($s){
 return pll__($s);

2. Visit >Languages>Strings translations ,  select group Advanced dynamic pricing   and add necessary translations