diff --git a/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.js b/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.js
index d595a80..8aec532 100644
--- a/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.js
+++ b/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.js
@@ -34,6 +34,22 @@
 		frm.trigger('setup_realtime_progress');
 	},
 
+	based_on: function(frm) {
+		var fields_to_reset = [];
+
+		if (frm.doc.based_on == 'Transaction') {
+			fields_to_reset = ['item_code', 'warehouse'];
+		} else if (frm.doc.based_on == 'Item and Warehouse') {
+			fields_to_reset = ['voucher_type', 'voucher_no'];
+		}
+
+		if (fields_to_reset) {
+			fields_to_reset.forEach(field => {
+				frm.set_value(field, undefined);
+			});
+		}
+	},
+
 	setup_realtime_progress: function(frm) {
 		frappe.realtime.on('item_reposting_progress', data => {
 			if (frm.doc.name !== data.name) {