diff --git a/backend/src/controllers/WhatsAppController.js b/backend/src/controllers/WhatsAppController.js
index 75d1d68..22dccdc 100644
--- a/backend/src/controllers/WhatsAppController.js
+++ b/backend/src/controllers/WhatsAppController.js
@@ -1,3 +1,4 @@
+const Yup = require("yup");
 const Whatsapp = require("../models/Whatsapp");
 const { getIO } = require("../libs/socket");
 const { getWbot, initWbot, removeWbot } = require("../libs/wbot");
@@ -5,13 +6,39 @@ const wbotMessageListener = require("../services/wbotMessageListener");
 const wbotMonitor = require("../services/wbotMonitor");
 
 exports.index = async (req, res) => {
-	const whatsapp = await Whatsapp.findAll();
+	const whatsapps = await Whatsapp.findAll();
 
-	return res.status(200).json(whatsapp);
+	return res.status(200).json(whatsapps);
 };
 
 exports.store = async (req, res) => {
+	const schema = Yup.object().shape({
+		name: Yup.string().required().min(2),
+		default: Yup.boolean()
+			.required()
+			.test(
+				"Check-default",
+				"Only one default whatsapp is permited",
+				async value => {
+					// console.log("cai no if", value);
+					if (value === true) {
+						const defaultFound = await Whatsapp.findOne({
+							where: { default: true },
+						});
+						return !Boolean(defaultFound);
+					} else return true;
+				}
+			),
+	});
+
+	try {
+		await schema.validate(req.body);
+	} catch (err) {
+		return res.status(400).json({ error: err.message });
+	}
+
 	const io = getIO();
+
 	const whatsapp = await Whatsapp.create(req.body);
 
 	if (!whatsapp) {
@@ -45,6 +72,31 @@ exports.show = async (req, res) => {
 };
 
 exports.update = async (req, res) => {
+	const schema = Yup.object().shape({
+		name: Yup.string().required().min(2),
+		default: Yup.boolean()
+			.required()
+			.test(
+				"Check-default",
+				"Only one default whatsapp is permited",
+				async value => {
+					// console.log("cai no if", value);
+					if (value === true) {
+						const defaultFound = await Whatsapp.findOne({
+							where: { default: true },
+						});
+						return !Boolean(defaultFound);
+					} else return true;
+				}
+			),
+	});
+
+	try {
+		await schema.validate(req.body);
+	} catch (err) {
+		return res.status(400).json({ error: err.message });
+	}
+
 	const io = getIO();
 	const { whatsappId } = req.params;
 
diff --git a/frontend/src/pages/WhatsApps/index.js b/frontend/src/pages/WhatsApps/index.js
index 36fdc67..e4dcbcb 100644
--- a/frontend/src/pages/WhatsApps/index.js
+++ b/frontend/src/pages/WhatsApps/index.js
@@ -4,6 +4,7 @@ import { toast } from "react-toastify";
 import { format, parseISO } from "date-fns";
 
 import { makeStyles } from "@material-ui/core/styles";
+import { green } from "@material-ui/core/colors";
 import {
 	Button,
 	TableBody,
@@ -14,7 +15,7 @@ import {
 	TableHead,
 	Paper,
 } from "@material-ui/core";
-import { Edit, DeleteOutline } from "@material-ui/icons";
+import { Edit, DeleteOutline, CheckCircle } from "@material-ui/icons";
 
 import MainContainer from "../../components/MainContainer";
 import MainHeader from "../../components/MainHeader";
@@ -228,6 +229,7 @@ const WhatsApps = () => {
 							<TableCell align="center">Name</TableCell>
 							<TableCell align="center">Status</TableCell>
 							<TableCell align="center">Last update</TableCell>
+							<TableCell align="center">Default</TableCell>
 							<TableCell align="center">Actions</TableCell>
 						</TableRow>
 					</TableHead>
@@ -258,6 +260,11 @@ const WhatsApps = () => {
 											<TableCell align="center">
 												{format(parseISO(whatsApp.updatedAt), "dd/MM/yy HH:mm")}
 											</TableCell>
+											<TableCell align="center">
+												{whatsApp.default && (
+													<CheckCircle style={{ color: green[500] }} />
+												)}
+											</TableCell>
 											<TableCell align="center">
 												<IconButton
 													size="small"