diff --git a/botmaker/client.py b/botmaker/client.py
index 6ff13dd..02158df 100644
--- a/botmaker/client.py
+++ b/botmaker/client.py
@@ -45,23 +45,19 @@ def _check_response(response):
         else:
             response.raise_for_status()
 
-    def check_whatsapp_contact(
-        self, channel: str, phone_number: str
-    ) -> Optional[str]:
+    def check_whatsapp_contacts(
+        self, channel: str, phone_numbers: list
+    ) -> dict:
         """
         Based on
         https://botmakeradmin.github.io/docs/es/#/messages-api?id=chequear-validez-de-n%C3%BAmeros-de-contactos-de-whatsapp
         """
         channel = sanitize_phone_number(channel)
-        data = dict(chatChannelNumber=channel, contacts=[phone_number])
+        data = dict(chatChannelNumber=channel, contacts=phone_numbers)
         resp = self.post('/customer/checkWhatsAppContact', data)
         try:
             result = resp['result']
         except KeyError:
             # This should never happen
             raise BotmakerException("Expected 'result' in the response body")
-        try:
-            checked = result[phone_number]
-        except KeyError:
-            checked = None
-        return checked
+        return result
diff --git a/botmaker/resources/template_messages.py b/botmaker/resources/template_messages.py
index 866276b..e036de8 100644
--- a/botmaker/resources/template_messages.py
+++ b/botmaker/resources/template_messages.py
@@ -38,12 +38,12 @@ def create(
         """
         from_ = sanitize_phone_number(from_)
         if chat_platform == 'whatsapp':
-            checked = cls._client.check_whatsapp_contact(from_, to)
-            if not checked:
+            check_dict = cls._client.check_whatsapp_contacts(from_, [to])
+            if to not in check_dict:
                 raise InvalidPhoneNumber(
                     f"'{to} is not from valid WhatsApp contact")
             else:
-                to = checked
+                to = check_dict[to]
         else:
             to = sanitize_phone_number(to)
         data = dict(
diff --git a/setup.py b/setup.py
index b12fecc..542722e 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 
 setuptools.setup(
     name='botmaker',
-    version='0.2.1',
+    version='0.3.0',
     author='Cuenca',
     author_email='dev@cuenca.com',
     description='BotMaker API Client',
diff --git a/tests/cassettes/test_check_whatsapp_contact.yaml b/tests/cassettes/test_check_whatsapp_contacts.yaml
similarity index 91%
rename from tests/cassettes/test_check_whatsapp_contact.yaml
rename to tests/cassettes/test_check_whatsapp_contacts.yaml
index 5ea8d9d..e8945ff 100644
--- a/tests/cassettes/test_check_whatsapp_contact.yaml
+++ b/tests/cassettes/test_check_whatsapp_contacts.yaml
@@ -1,11 +1,11 @@
 interactions:
 - request:
-    body: '{"contacts": ["+55 1 55 1234 5678"], "chatChannelNumber": "5215500000000"}'
+    body: '{"contacts": ["+55 1 55 1234 5678","123"], "chatChannelNumber": "5215500000000"}'
     headers:
       Accept: ['*/*']
       Accept-Encoding: ['[application/json, application/xml, text/plain]']
       Connection: [keep-alive]
-      Content-Length: ['74']
+      Content-Length: ['80']
       Content-Type: [application/json]
       User-Agent: [python-requests/2.21.0]
       access-token: [DUMMY]
diff --git a/tests/test_template_messages.py b/tests/test_template_messages.py
index 99170ce..3d5b6d4 100644
--- a/tests/test_template_messages.py
+++ b/tests/test_template_messages.py
@@ -15,6 +15,7 @@ def test_template_message(client):
     assert tm == tm
     assert repr(tm)
     assert str(tm)
+    assert tm.to == '5515512345678'
 
 
 @pytest.mark.vcr
diff --git a/tests/test_whatsapp.py b/tests/test_whatsapp.py
index 25645a2..a9cdaa4 100644
--- a/tests/test_whatsapp.py
+++ b/tests/test_whatsapp.py
@@ -4,20 +4,15 @@
 
 
 @pytest.mark.vcr
-def test_check_whatsapp_contact(client):
-    phone_number = '+55 1 55 1234 5678'
-    checked_contact = '5515512345678'
-    assert checked_contact == client.check_whatsapp_contact(
-        '5215500000000', phone_number
-    )
-
-
-@pytest.mark.vcr
-def test_invalid_whatsapp_contact(client):
-    assert client.check_whatsapp_contact('5215500000000', '123') is None
+def test_check_whatsapp_contacts(client):
+    contacts = ['+55 1 55 1234 5678', '123']
+    result = client.check_whatsapp_contacts('5215500000000', contacts)
+    assert '+55 1 55 1234 5678' in result  # whatsapp
+    assert result['+55 1 55 1234 5678'] == '5515512345678'
+    assert '123' not in result  # no whatsapp
 
 
 @pytest.mark.vcr
 def test_invalid_channel(client):
     with pytest.raises(BotmakerException):
-        client.check_whatsapp_contact('52 55 1234 5678', '123')
+        client.check_whatsapp_contacts('52 55 1234 5678', ['123'])