diff --git a/sample/doc/assets/behavior.js b/sample/doc/assets/behavior.js
index 7073b32..a0cde1e 100644
--- a/sample/doc/assets/behavior.js
+++ b/sample/doc/assets/behavior.js
@@ -388,6 +388,14 @@ f.event={add:function(a,c,d,e,g){var h,i,j,k,l,m,n,o,p,q,r,s;if(!(a.nodeType===3
                     "slug": "shipping-information"
                   },
                   "depth": 3
+                }, {
+                  "type": "heading",
+                  "data": {
+                    "level": 3,
+                    "title": "Logo",
+                    "slug": "logo"
+                  },
+                  "depth": 3
                 }, {
                   "type": "heading",
                   "data": {
@@ -1069,93 +1077,7 @@ f.event={add:function(a,c,d,e,g){var h,i,j,k,l,m,n,o,p,q,r,s;if(!(a.nodeType===3
             "pageTitle": "payments/CreatePaymentUsingPayPal",
             "title": "CreatePaymentUsingPayPal"
           },
-          "depth": 2,
-          "outline": [
-            {
-              "type": "heading",
-              "data": {
-                "level": 1,
-                "title": "Create Payment using PayPal as payment method",
-                "slug": "create-payment-using-paypal-as-payment-method"
-              },
-              "depth": 1,
-              "children": [
-                {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Payer",
-                    "slug": "payer"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Itemized information",
-                    "slug": "itemized-information"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Additional payment details",
-                    "slug": "additional-payment-details"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Amount",
-                    "slug": "amount"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Transaction",
-                    "slug": "transaction"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Redirect urls",
-                    "slug": "redirect-urls"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Payment",
-                    "slug": "payment"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Create Payment",
-                    "slug": "create-payment"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Get redirect url",
-                    "slug": "get-redirect-url"
-                  },
-                  "depth": 3
-                }
-              ]
-            }
-          ]
+          "depth": 2
         }, {
           "type": "file",
           "data": {
@@ -1543,56 +1465,7 @@ f.event={add:function(a,c,d,e,g){var h,i,j,k,l,m,n,o,p,q,r,s;if(!(a.nodeType===3
             "pageTitle": "payouts/CreateSinglePayout",
             "title": "CreateSinglePayout"
           },
-          "depth": 2,
-          "outline": [
-            {
-              "type": "heading",
-              "data": {
-                "level": 1,
-                "title": "Create Single Synchronous Payout Sample",
-                "slug": "create-single-synchronous-payout-sample"
-              },
-              "depth": 1,
-              "children": [
-                {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "NOTE:",
-                    "slug": "note"
-                  },
-                  "depth": 3,
-                  "children": [
-                    {
-                      "type": "heading",
-                      "data": {
-                        "level": 4,
-                        "title": "Batch Header Instance",
-                        "slug": "batch-header-instance"
-                      },
-                      "depth": 4
-                    }, {
-                      "type": "heading",
-                      "data": {
-                        "level": 4,
-                        "title": "Sender Item",
-                        "slug": "sender-item"
-                      },
-                      "depth": 4
-                    }
-                  ]
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Create Payout",
-                    "slug": "create-payout"
-                  },
-                  "depth": 3
-                }
-              ]
-            }
-          ]
+          "depth": 2
         }, {
           "type": "file",
           "data": {
@@ -1674,45 +1547,7 @@ f.event={add:function(a,c,d,e,g){var h,i,j,k,l,m,n,o,p,q,r,s;if(!(a.nodeType===3
             "pageTitle": "sale/RefundSale",
             "title": "RefundSale"
           },
-          "depth": 2,
-          "outline": [
-            {
-              "type": "heading",
-              "data": {
-                "level": 1,
-                "title": "Sale Refund Sample",
-                "slug": "sale-refund-sample"
-              },
-              "depth": 1,
-              "children": [
-                {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Refund amount",
-                    "slug": "refund-amount"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Refund object",
-                    "slug": "refund-object"
-                  },
-                  "depth": 3
-                }, {
-                  "type": "heading",
-                  "data": {
-                    "level": 3,
-                    "title": "Sale",
-                    "slug": "sale"
-                  },
-                  "depth": 3
-                }
-              ]
-            }
-          ]
+          "depth": 2
         }
       ]
     }, {
diff --git a/sample/doc/invoice/CreateInvoice.html b/sample/doc/invoice/CreateInvoice.html
index 2791f9d..722c9f1 100644
--- a/sample/doc/invoice/CreateInvoice.html
+++ b/sample/doc/invoice/CreateInvoice.html
@@ -10,6 +10,7 @@ an invoice.</p></div></div><div class="code"><div class="wrapper"><span class="h
 <span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Currency</span>;
 <span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">PaymentTerm</span>;
 <span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">ShippingInfo</span>;
+<span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">InvoiceAddress</span>;
 
 <span class="hljs-variable">$invoice</span> = <span class="hljs-keyword">new</span> Invoice();</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="invoice-info">Invoice Info</h3>
 <p>Fill in all the information that is
@@ -74,7 +75,7 @@ detailed breakdown of invoice</p></div></div><div class="code"><div class="wrapp
     -&gt;setLastName(<span class="hljs-string">"Patient"</span>)
     -&gt;setBusinessName(<span class="hljs-string">"Not applicable"</span>)
     -&gt;setPhone(<span class="hljs-keyword">new</span> Phone())
-    -&gt;setAddress(<span class="hljs-keyword">new</span> Address());
+    -&gt;setAddress(<span class="hljs-keyword">new</span> InvoiceAddress());
 
 <span class="hljs-variable">$invoice</span>-&gt;getShippingInfo()-&gt;getPhone()
     -&gt;setCountryCode(<span class="hljs-string">"001"</span>)
@@ -85,7 +86,8 @@ detailed breakdown of invoice</p></div></div><div class="code"><div class="wrapp
     -&gt;setCity(<span class="hljs-string">"Portland"</span>)
     -&gt;setState(<span class="hljs-string">"OR"</span>)
     -&gt;setPostalCode(<span class="hljs-string">"97217"</span>)
-    -&gt;setCountryCode(<span class="hljs-string">"US"</span>);</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><p>For Sample Purposes Only.</p></div></div><div class="code"><div class="wrapper"><span class="hljs-variable">$request</span> = <span class="hljs-keyword">clone</span> <span class="hljs-variable">$invoice</span>;
+    -&gt;setCountryCode(<span class="hljs-string">"US"</span>);</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="logo">Logo</h3>
+<p>You can set the logo in the invoice by providing the external URL pointing to a logo</p></div></div><div class="code"><div class="wrapper"><span class="hljs-variable">$invoice</span>-&gt;setLogoUrl(<span class="hljs-string">'https://www.paypalobjects.com/webstatic/i/logo/rebrand/ppcom.svg'</span>);</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><p>For Sample Purposes Only.</p></div></div><div class="code"><div class="wrapper"><span class="hljs-variable">$request</span> = <span class="hljs-keyword">clone</span> <span class="hljs-variable">$invoice</span>;
 
 <span class="hljs-keyword">try</span> {</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="create-invoice">Create Invoice</h3>
 <p>Create an invoice by calling the invoice-&gt;create() method
diff --git a/sample/invoice/CreateInvoice.php b/sample/invoice/CreateInvoice.php
index 6562d7f..f5871a1 100644
--- a/sample/invoice/CreateInvoice.php
+++ b/sample/invoice/CreateInvoice.php
@@ -14,6 +14,7 @@ use PayPal\Api\Address;
 use PayPal\Api\Currency;
 use PayPal\Api\PaymentTerm;
 use PayPal\Api\ShippingInfo;
+use PayPal\Api\InvoiceAddress;
 
 $invoice = new Invoice();
 
@@ -105,7 +106,7 @@ $invoice->getShippingInfo()
     ->setLastName("Patient")
     ->setBusinessName("Not applicable")
     ->setPhone(new Phone())
-    ->setAddress(new Address());
+    ->setAddress(new InvoiceAddress());
 
 $invoice->getShippingInfo()->getPhone()
     ->setCountryCode("001")
@@ -118,6 +119,10 @@ $invoice->getShippingInfo()->getAddress()
     ->setPostalCode("97217")
     ->setCountryCode("US");
 
+// ### Logo
+// You can set the logo in the invoice by providing the external URL pointing to a logo
+$invoice->setLogoUrl('https://www.paypalobjects.com/webstatic/i/logo/rebrand/ppcom.svg');
+
 // For Sample Purposes Only.
 $request = clone $invoice;