diff --git a/connector_walmart/components/api/walmart.py b/connector_walmart/components/api/walmart.py
index d20bdf3f..4e89a9cf 100644
--- a/connector_walmart/components/api/walmart.py
+++ b/connector_walmart/components/api/walmart.py
@@ -389,12 +389,12 @@ class Orders(Resource):
 
     def acknowledge(self, id):
         url = self.url + '/%s/acknowledge' % id
-        return self.send_request(method='POST', url=url)
+        return self.connection.send_request(method='POST', url=url)
 
     def cancel(self, id, lines):
         url = self.url + '/%s/cancel' % id
-        return self.send_request(
-            method='POST', url=url, data=self.get_cancel_payload(lines))
+        return self.connection.send_request(
+            method='POST', url=url, body=self.get_cancel_payload(lines))
 
     def get_cancel_payload(self, lines):
         element = ElementMaker(
diff --git a/connector_walmart/models/sale_order/common.py b/connector_walmart/models/sale_order/common.py
index 6574e233..944778bb 100644
--- a/connector_walmart/models/sale_order/common.py
+++ b/connector_walmart/models/sale_order/common.py
@@ -172,7 +172,8 @@ class SaleOrderAdapter(Component):
         if not 'list' in orders_response:
             return []
 
-        next = orders_response['list']['meta']['nextCursor']
+        # 'meta' may not be there (though it is in the example on the API docs even when nextCursor is none)
+        next = orders_response.get('list', {}).get('meta', {}).get('nextCursor')
         if next:
             self.env[self._apply_on].with_delay().import_batch(
                 self.backend_record,