diff --git a/lib/myob-api.rb b/lib/myob-api.rb
index d9f95a8..8ea0297 100644
--- a/lib/myob-api.rb
+++ b/lib/myob-api.rb
@@ -20,6 +20,8 @@
 require 'myob/api/models/customer_payment'
 require 'myob/api/models/invoice'
 require 'myob/api/models/invoice_item'
+require 'myob/api/models/order'
+require 'myob/api/models/order_item'
 
 require 'myob/api/models/payroll_category'
 require 'myob/api/models/wage'
@@ -32,4 +34,8 @@
 
 require 'myob/api/models/employee_payroll_advice'
 
+require 'myob/api/models/inventory_adjustment'
+require 'myob/api/models/inventory_item_price_matrix'
+require 'myob/api/models/inventory_item'
+
 require 'myob/api/client'
diff --git a/lib/myob/api/models/general_ledger.rb b/lib/myob/api/models/general_ledger.rb
index 062bdfe..f1b9ab3 100644
--- a/lib/myob/api/models/general_ledger.rb
+++ b/lib/myob/api/models/general_ledger.rb
@@ -43,6 +43,12 @@ def model_route
         end
       end
 
+      class Currency < Base
+        def model_route
+          'GeneralLedger/Currency'
+        end
+      end
+
       class GeneralJournal < Base
         def model_route
           'GeneralLedger/GeneralJournal'
diff --git a/lib/myob/api/models/inventory_adjustment.rb b/lib/myob/api/models/inventory_adjustment.rb
new file mode 100644
index 0000000..d596cca
--- /dev/null
+++ b/lib/myob/api/models/inventory_adjustment.rb
@@ -0,0 +1,11 @@
+module Myob
+  module Api
+    module Model
+      class InventoryAdjustment < Base
+        def model_route
+          'Inventory/Adjustment'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/myob/api/models/inventory_item.rb b/lib/myob/api/models/inventory_item.rb
new file mode 100644
index 0000000..cdad905
--- /dev/null
+++ b/lib/myob/api/models/inventory_item.rb
@@ -0,0 +1,11 @@
+module Myob
+  module Api
+    module Model
+      class InventoryItem < Base
+        def model_route
+          'Inventory/Item'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/myob/api/models/inventory_item_price_matrix.rb b/lib/myob/api/models/inventory_item_price_matrix.rb
new file mode 100644
index 0000000..fe71d46
--- /dev/null
+++ b/lib/myob/api/models/inventory_item_price_matrix.rb
@@ -0,0 +1,11 @@
+module Myob
+  module Api
+    module Model
+      class InventoryItemPriceMatrix < Base
+        def model_route
+          'Inventory/ItemPriceMatrix'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/myob/api/models/order.rb b/lib/myob/api/models/order.rb
new file mode 100644
index 0000000..15c75e5
--- /dev/null
+++ b/lib/myob/api/models/order.rb
@@ -0,0 +1,11 @@
+module Myob
+  module Api
+    module Model
+      class Order < Base
+        def model_route
+          'Sale/Order'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/myob/api/models/order_item.rb b/lib/myob/api/models/order_item.rb
new file mode 100644
index 0000000..f137019
--- /dev/null
+++ b/lib/myob/api/models/order_item.rb
@@ -0,0 +1,11 @@
+module Myob
+  module Api
+    module Model
+      class OrderItem < Base
+        def model_route
+          'Sale/Order/Item'
+        end
+      end
+    end
+  end
+end