diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2311edac..d9b5ac6b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 * Correction in the use of the api with mongodb
 * Adjustments to search endpoint for contacts, chats, messages and Status messages
 * Now when deleting the instance, the data referring to it in mongodb is also deleted
+* It is now validated if the instance name contains uppercase and special characters
 
 # 1.3.1 (2023-07-20 07:48)
 
diff --git a/src/whatsapp/controllers/instance.controller.ts b/src/whatsapp/controllers/instance.controller.ts
index f0adb3a3..ef0c00aa 100644
--- a/src/whatsapp/controllers/instance.controller.ts
+++ b/src/whatsapp/controllers/instance.controller.ts
@@ -42,6 +42,12 @@ export class InstanceController {
   }: InstanceDto) {
     this.logger.verbose('requested createInstance from ' + instanceName + ' instance');
 
+    if (instanceName !== instanceName.toLowerCase().replace(/[^a-z0-9]/g, '')) {
+      throw new BadRequestException(
+        'The instance name must be lowercase and without special characters',
+      );
+    }
+
     const mode = this.configService.get<Auth>('AUTHENTICATION').INSTANCE.MODE;
 
     if (mode === 'container') {
diff --git a/src/whatsapp/services/whatsapp.service.ts b/src/whatsapp/services/whatsapp.service.ts
index 8035bbfb..549dd7d6 100644
--- a/src/whatsapp/services/whatsapp.service.ts
+++ b/src/whatsapp/services/whatsapp.service.ts
@@ -1412,8 +1412,6 @@ export class WAStartupService {
     }
 
     if (Number(countryCode) === 52 || Number(countryCode) === 54) {
-      console.log('numero mexicano');
-
       const formattedMXARNumber = this.formatMXOrARNumber(number);
 
       if (formattedMXARNumber !== number) {