diff --git a/src/Client.php b/src/Client.php
index c77f9e2..b40489b 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -123,6 +123,16 @@ public function deleteCustomerTag($idcustomer, $idtag)
         return $this->sendRequest('/customers/' . $idcustomer . '/tags/' . $idtag, [], self::METHOD_DELETE);
     }
 
+    public function addCustomerComment($idcustomer, $params)
+    {
+        return $this->sendRequest('/customers/' . $idcustomer . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getCustomerComments($idcustomer)
+    {
+        return $this->sendRequest('/customers/' . $idcustomer . '/comments');
+    }
+
     /*
      * Products
      */
@@ -273,6 +283,16 @@ public function unlinkProductFromLocation($idproduct, $idlocation)
         return $this->sendRequest('/products/' . $idproduct . '/locations/' . $idlocation, array(), self::METHOD_DELETE);
     }
 
+    public function addProductComment($idproduct, $params)
+    {
+        return $this->sendRequest('/products/' . $idproduct . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getProductComments($idproduct)
+    {
+        return $this->sendRequest('/products/' . $idproduct . '/comments');
+    }
+
     /*
      * Stock history
      */
@@ -366,6 +386,16 @@ public function addOrderNote($idorder, $note)
         return $this->sendRequest('/orders/' . $idorder . '/notes', ['note' => $note], self::METHOD_POST);
     }
 
+    public function addOrderComment($idorder, $params)
+    {
+        return $this->sendRequest('/orders/' . $idorder . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getOrderComments($idorder)
+    {
+        return $this->sendRequest('/orders/' . $idorder . '/comments');
+    }
+
     public function getOrderTags($idorder)
     {
         return $this->sendRequest('/orders/' . $idorder . '/tags');
@@ -536,6 +566,16 @@ public function getPackinglistPdf($idpicklist)
         return $this->sendRequest('/picklists/' . $idpicklist . '/packinglistpdf');
     }
 
+    public function addPicklistComment($idpicklist, $params)
+    {
+        return $this->sendRequest('/picklists/' . $idpicklist . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getPicklistComments($idpicklist)
+    {
+        return $this->sendRequest('/picklists/' . $idpicklist . '/comments');
+    }
+
     /*
      * Picklist batches
      */
@@ -582,6 +622,16 @@ public function updateSupplier($idsupplier, $params)
         return $this->sendRequest('/suppliers/' . $idsupplier, $params, self::METHOD_PUT);
     }
 
+    public function addSupplierComment($idsupplier, $params)
+    {
+        return $this->sendRequest('/suppliers/' . $idsupplier . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getSupplierComments($idsupplier)
+    {
+        return $this->sendRequest('/suppliers/' . $idsupplier . '/comments');
+    }
+
     /*
      * Purchase orders
      */
@@ -663,6 +713,30 @@ public function updatePurchaseorder($idpurchaseorder, $params)
         return $this->sendRequest('/purchaseorders/' . $idpurchaseorder, $params, self::METHOD_PUT);
     }
 
+    public function addPurchaseorderComment($idpurchaseorder, $params)
+    {
+        return $this->sendRequest('/purchaseorders/' . $idpurchaseorder . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getPurchaseorderComments($idpurchaseorder)
+    {
+        return $this->sendRequest('/purchaseorders/' . $idpurchaseorder . '/comments');
+    }
+
+    /**
+     * New receipt endpoints have not added yet, so added it below purchase orders for now
+     */
+
+    public function addReceiptComment($idreceipt, $params)
+    {
+        return $this->sendRequest('/receipts/' . $idreceipt . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getReceiptComments($idreceipt)
+    {
+        return $this->sendRequest('/receipts/' . $idreceipt . '/comments');
+    }
+
     /*
      * Returns
      */
@@ -723,6 +797,16 @@ public function getAllReturnReasons($filters = [])
         return $this->getAllResults('returnReason');
     }
 
+    public function addReturnComment($idreturn, $params)
+    {
+        return $this->sendRequest('/returns/' . $idreturn . '/comments', $params, self::METHOD_POST);
+    }
+
+    public function getReturnComments($idreturn)
+    {
+        return $this->sendRequest('/returns/' . $idreturn . '/comments');
+    }
+
     /*
      * Returned Products
      */
@@ -1008,6 +1092,25 @@ public function getStat($key)
         return $this->sendRequest('/stats/' . $key);
     }
 
+    /*
+    * Comments
+    */
+
+    public function getComments($filters = [])
+    {
+        return $this->sendRequest('/comments', [], self::METHOD_GET, $filters);
+    }
+    
+    public function getComment($idcomment)
+    {
+        return $this->sendRequest('/comments/' . $idcomment, [], self::METHOD_GET);
+    }
+
+    public function deleteComment($idcomment)
+    {
+        return $this->sendRequest('/comments/' . $idcomment, [], self::METHOD_DELETE);
+    }
+
     /*
      * General
      */