diff --git a/application/controllers/api/v1/Admins.php b/application/controllers/api/v1/Admins.php
index 1a3cbe91..4b5dff26 100644
--- a/application/controllers/api/v1/Admins.php
+++ b/application/controllers/api/v1/Admins.php
@@ -87,11 +87,16 @@ class Admins extends API_V1_Controller {
             $admin = $request->get_body();
             $this->parser->decode($admin);
 
-            if (isset($admin['id']))
+            if (array_key_exists('id', $admin))
             {
                 unset($admin['id']);
             }
 
+            if ( ! array_key_exists('settings', $admin))
+            {
+                throw new Exception('No settings property provided.');
+            }
+
             $id = $this->admins_model->add($admin);
 
             // Fetch the new object from the database and return it to the client.
diff --git a/application/controllers/api/v1/Providers.php b/application/controllers/api/v1/Providers.php
index 5d163b18..a3739968 100644
--- a/application/controllers/api/v1/Providers.php
+++ b/application/controllers/api/v1/Providers.php
@@ -87,11 +87,26 @@ class Providers extends API_V1_Controller {
             $provider = $request->get_body();
             $this->parser->decode($provider);
 
-            if (isset($provider['id']))
+            if (array_key_exists('id', $provider))
             {
                 unset($provider['id']);
             }
 
+            if ( ! array_key_exists('services', $provider))
+            {
+                throw new Exception('No services property provided.');
+            }
+
+            if ( ! array_key_exists('settings', $provider))
+            {
+                throw new Exception('No settings property provided.');
+            }
+
+            if ( ! array_key_exists('working_plan', $provider['settings']['working_plan']))
+            {
+                $provider['settings']['working_plan'] = $this->settings_model->get_setting('company_working_plan');
+            }
+
             $id = $this->providers_model->add($provider);
 
             // Fetch the new object from the database and return it to the client.
diff --git a/application/controllers/api/v1/Secretaries.php b/application/controllers/api/v1/Secretaries.php
index d25001cc..2cff1720 100644
--- a/application/controllers/api/v1/Secretaries.php
+++ b/application/controllers/api/v1/Secretaries.php
@@ -87,11 +87,21 @@ class Secretaries extends API_V1_Controller {
             $secretary = $request->get_body();
             $this->parser->decode($secretary);
 
-            if (isset($secretary['id']))
+            if (array_key_exists('id', $secretary))
             {
                 unset($secretary['id']);
             }
 
+            if ( ! array_key_exists('providers', $secretary))
+            {
+                throw new Exception('No providers property provided.');
+            }
+
+            if ( ! array_key_exists('settings', $secretary))
+            {
+                throw new Exception('No settings property provided.');
+            }
+
             $id = $this->secretaries_model->add($secretary);
 
             // Fetch the new object from the database and return it to the client.