fix: Filter options for Discount Account

erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js

@@ -508,6 +508,16 @@ frappe.ui.form.on("Purchase Invoice", {
 				}
 			}
 		}
+
+		frm.fields_dict['items'].grid.get_field('discount_account').get_query = function(doc) {
+			return {
+				filters: {
+					'report_type': 'Profit and Loss',
+					'company': doc.company,
+					"is_group": 0
+				}
+			}
+		}
 	},
 
 	refresh: function(frm) {