{{-- warning modal --}}
     <div class="modal fade" id="warningInvoiceReferenceNumber" tabindex="-1" role="dialog" aria-labelledby="invoiceLabel">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                            <span aria-hidden="true">&times;</span>
                    </button>
                    <h4 class="modal-title" id="invoiceLabel">@lang('Warning')</h4>
                </div>
                <div class="modal-body">
                    <p>
                        @lang('purchases::purchase_bills.invoiceReferenceNumberIsExist')
                    </p>
                </div>
                <div class="modal-footer text-center">
                        <button type="button" class="btn btn-primary mx-1" data-dismiss="modal">@lang('OK')</button>
                </div>
            </div>
        </div>
    </div>