diff --git a/helpers/sendinblue.helper.js b/helpers/sendinblue.helper.js
index a93f35b..64b74a3 100644
--- a/helpers/sendinblue.helper.js
+++ b/helpers/sendinblue.helper.js
@@ -35,7 +35,7 @@ function _createMember(member) {
         api.createContact(createContact)
             .then(function (data) {
                 console.debug('API called successfully. Returned data: ' + data);
-                if (data.id) {
+                if (data && data.id) {
                     // Se ha dado de alta el contacto porque no existía
                     createContact.ID = data.id;
                 }
@@ -116,6 +116,7 @@ function addMember(listId, member) {
     return new Promise(function (resolve, reject) {
         _createMember(member)
             .then(function(contact) {
+                console.debug('añadir a lista: ' + listId + '  *  ' + contact);
                 return _addMemberToList(contact, listId);
             })
             .then(function() {