[Help] 🙌 Purchase invoice item - Client script

Hello, I need to reject the document if any quantity is entered in “Rejected Qty” in purchase invoice. I wrote below client script but not working.

  frappe.ui.form.on("Purchase Invoice Item","before_save", function(frm) {
	if ( frm.doc.rejected_qty > 0) {
			msgprint('check rejected quantity');
			validated = false;

Feel like the event should be applied on the parent doctype as the purchase items are stored in a child table. Try the code below, or take a look at child table events. Form Scripts

frappe.ui.form.on("Purchase Invoice", {
     before_save(frm) {
		 for(var i=0; i<frm.doc.items.length; i++){
				 //your code here

I’m not much of a coder. This worked!
Thanks a lot brother!:heart_eyes: