<fieldset class="no-border-bottom">
  <% param_prefix = "payment_source[#{payment_method.id}]" %>
  <%= label_tag nil, "PO Number" %>
  <%= text_field_tag "#{param_prefix}[po_number]", '', :class => 'required', :autocomplete => "off" %>
</fieldset>

Enable payment via PO in backend
Enable payment via PO in backend
