Merge pull request #12288 from shariquerik/on-event-creation-assign-to-fix

frappe/public/js/frappe/views/interaction.js

@@ -259,7 +259,7 @@ frappe.views.InteractionComposer = class InteractionComposer {
 				args: {
 					doctype: doc.doctype,
 					name: doc.name,
-					assign_to: assignee,
+					assign_to: JSON.stringify([assignee]),
 				},
 				callback:function(r) {
 					if(!r.exc) {
@@ -334,4 +334,4 @@ function get_doc_mappings() {
 	};
 
 	return doc_map;
-}
+}