notifications-admin/app/templates/partials/check/letter-too-long.html

<h1 class='banner-title' data-module="track-error" data-error-type="Trying to send a letter that's too long" data-error-label="service_id: {{ current_service.id }}">
  Your letter is too long
</h1>
<p>
  Letters must be {{ letter_max_pages }} pages or less.
  <br>
  Your letter is {{ page_count }} pages long.
</p>