[FIX] inventory: fix landed costs documentation

Update the documentation based on V12. Real costing has changed to FIFO. The
setting to activate the landed costs have changed too.  The screenshots were
not up to date anymore.

Remove old screenshots and compress screenshots added at 51b3e3030

inventory/routes/costing/landed_costs.rst

@@ -1,79 +1,38 @@
-=========================================================
-How to integrate landed costs in the cost of the product?
-=========================================================
+============================================================================
+How to integrate additional costs in the cost of the product? (landed costs)
+============================================================================
 
 Overview
 ========
 
-Landed costs include all charges associated to a good transfer.
+The landed cost feature in Odoo allows to include additional costs (shipment,
+insurance, customs duties, etc.) into the cost of the product.
 
-Landed cost includes = Cost of product + Shipping + Customs + Risk
-
-All of these components might not be applicable in every shipment, but
-relevant components must be considered as a part of the landed cost. We
-have to identify landed cost to decide sale price of product because it
-will impact on company profits.
+.. note::
+    Landed costs can only be applied to products with a FIFO costing method and
+    an automated inventory valuation (which requires the accounting application
+    to be instealled).
 
 Configuration
 =============
 
-Applications configuration
---------------------------
 
-First, you need to activate the use of the landed costs. Go to
-:menuselection:`Inventory application --> Configuration --> Setting`. 
-Check accounting option **Include landed costs in product costing computation**
-& **Perpetual inventory valuation**, then click on **Apply** to save
-changes.
+First, you need to activate the landed costs feature in
+:menuselection:`Inventory --> Configuration --> Settings`.
 
-.. image:: media/landed_costs01.png
+.. image:: media/landed_costs_v12_01.png
     :align: center
 
-Then go to the :menuselection:`Purchase application --> Configuration --> Setting`.
-Choose costing method **Use a 'Fixed', 'Real' or 'Average' price
-costing method**, then click on **Apply** to save changes.
+Add costs to products
+======================
 
-.. image:: media/landed_costs02.png
+Go in :menuselection:`Inventory --> Operations --> Landed Costs`and click on the
+**Create** button. You then have to select the transfers on which you want to
+attribute additional costs and the costs lines you want to add up. Once it's
+done, click on the **Compute** button to see how the costs lines will be split
+accross your transfers lines.
+
+.. image:: media/landed_costs_v12_02.png
     :align: center
 
-Landed Cost Types
------------------
-
-Start by creating specific products to indicate your various **Landed
-Costs**, such as freight, insurance or custom duties. Go to 
-:menuselection:`Inventory --> Configuration --> Landed Cost types`.
-
-.. image:: media/landed_costs03.png
-    :align: center
-
-.. note:: 
-    Landed costs are only possible for products configured in real
-    time valuation with real price costing method. The costing method is
-    configured on the product category.
-
-Link landed costs to a transfer
-===============================
-
-To calculate landed costs, go to 
-:menuselection:`Inventory --> Inventory Control --> Landed Costs`.
-
-Click on the **Create** button and select the picking(s) you want to
-attribute landed costs.
-
-.. image:: media/landed_costs04.png
-    :align: center
-
-Select the account journal in which to post the landed costs. We
-recommend you to create a specific journal for landed costs. Therefore
-it will be easier to keep track of your postings.
-
-.. image:: media/landed_costs05.png
-    :align: center
-
-Click the **Compute** button to see how the landed costs will be split
-across the picking lines.
-
-.. image:: media/landed_costs06.png
-    :align: center
-
-To confirm the landed costs attribution, click on the **Validate** button.
+To confirm, click on the **Validate** button.