mandButton>
                    <p:commandButton
                        value="Send Email"
                        icon="fas fa-envelope"
                        action="#{purchaseOrderController.prepareEmailDialog}"
                        styleClass="ui-button-secondary m-1"
                        oncomplete="PF('emailDialog').show();"
                        update="emailDialogForm"/>

                    <p:panel   id="gpBillPreview" class="my-2">

                        <ph:po bill="#{purchaseOrderC