Invoice orders need to be declined for terms that are Prepayment.

When a customer’s terms are prepayment and they try to make an order using an invoice, the order must be denied. For this, we can disable the continue button and display a message regarding this.

		// code for Payment Method Continue Button//
							showBilling: function showBilling(event) {
								// Payment Method Continue Button
								var checkOutStep = event.target.getAttribute('step')
								document.cookie = "step=" + checkOutStep + ';path=/';
								var url = new URL(window.location.href);
								url.searchParams.set('step', checkOutStep);
								window.history.replaceState(null, null, url);
								// payment method invoice option terms are prepayment 
								try{
								var paymentOption = $('[data-action="select-payment-method"]').val();
								var continueButton = $('#payment_method_continue_button');
								var paymentoptiontermsterms = this.profile.attributes.paymentterms.name;
								// Strict equality to avoid pitfalls of type coercion
								if ( (paymentOption === "invoice" && paymentoptiontermsterms === "Prepayment")) {
									continueButton.prop('disabled', true);
									var global_view_message = '<span class="global-views-message global-views-message-error alert">Please select other payment method </span>'
									$(global_view_message).insertAfter('[data-action="select-payment-method"]');
								} else {
									continueButton.prop('disabled', false);
									if (checkOutStep == 3) {
										console.log('PaymentContinue', checkOutStep)
										this.wizard.selectedShipping = true;
										this.wizard.selectedDelivery = true;
										this.wizard.selectedPayment = true;
										this.wizard.selectedBilling = true;
										$(".billing_class").removeClass("close_section");
									}
									$("html, body").animate({
										scrollTop: $('#payment_method_continue_button').offset().top - 70
									}, 10);
								}
							}
							catch(e) {    }
							},