[ADD] POS: Scale certification content

task-4893590

closes #14235

X-original-commit: 927c7ae
Signed-off-by: Loredana Perazzo (lrpz) <lrpz@odoo.com>

Author: LoredanaLrpz

content/applications/general/iot/devices/scale.rst

@@ -3,13 +3,9 @@ Connect a scale
 ===============
 
 .. important::
-   - In EU member states, `certification is legally required
-     <https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2014.096.01.0107.01.ENG>`_
-     to use a scale as an integrated device.
-   - Odoo is not certified in several countries, including France, Germany, and Switzerland. If you
-     reside in one of these countries, you can still use a scale but without integration into your
-     Odoo database. Alternatively, you can acquire a *non-integrated* certified scale that prints
-     certified labels, which can then be scanned into your Odoo database.
+   In EU member states, `certification is legally required
+   <https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2014.096.01.0107.01.ENG>`_
+   to use a scale as an integrated device.
 
 To connect a scale to the IoT system, use a USB cable. In some cases, you may need a serial-to-US
 adapter to complete the connection. If the scale is `compatible with an IoT system
@@ -23,27 +19,11 @@ scale's drivers <iot_updating_iot/handlers>`.
    the Odoo IoT system <https://www.odoo.com/page/iot-hardware>`_. In such cases, a different scale
    must be used.
 
-Once the scale is connected to the IoT system, follow these steps to configure it in the POS
-settings:
-
-#. :ref:`Access the POS settings <configuration/settings>` and select your POS, or click the
-   vertical ellipsis button (:guilabel:`⋮`) on a POS card and click :guilabel:`Edit`.
-#. Scroll down to the :guilabel:`Connected Devices` section and enable :guilabel:`IoT Box`.
-#. Select the scale in the :guilabel:`Electronic Scale` field.
-#. Click :guilabel:`Save`.
+Once the scale is connected to the IoT system, :ref:`configure it in the POS settings <pos/scale>`.
 
 .. seealso::
    :doc:`Connect an IoT system to a POS </applications/sales/point_of_sale/configuration/pos_iot>`
 
-The scale is then available in all the :doc:`POS's sessions </applications/sales/point_of_sale>`.
-If a product is configured with a price per weight, selecting it on the :guilabel:`PoS screen` opens
-the scale popup. The cashier can then weigh the product to automatically add the correct price to
-the cart.
-
-.. image:: scale/scale-view.png
-   :scale: 80%
-   :alt: Electronic Scale dashboard view when no items are being weighed.
-
 Ariva S scales
 ==============
 

content/applications/general/iot/devices/scale/scale-view.png

@@ -212,6 +212,7 @@ To get an overview of all orders, regardless of the session, click the vertical
    :titlesonly:
 
    point_of_sale/configuration
+   point_of_sale/pos_hardware
    point_of_sale/employee_login
    point_of_sale/receipts_invoices
    point_of_sale/preparation

content/applications/sales/point_of_sale.rst

@@ -0,0 +1,110 @@
+========
+Hardware
+========
+
+Odoo Point of Sale supports integration with a variety of hardware, including :doc:`payment
+terminals <payment_methods/terminals>` and cash drawers, as well as :doc:`customer displays
+<shop/customer_display>`, :ref:`scales <pos/scale>`, :doc:`barcode scanners <shop/barcode>`,
+:doc:`ePOS printers <configuration/epos_printers>`, and in-store :doc:`electronic shelf labels
+<pricing/electronic_labels>`.
+
+.. _pos/scale:
+
+Scale
+=====
+
+.. important::
+   In EU member states, `certification is legally required
+   <https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2014.096.01.0107.01.ENG>`_
+   to use a scale as an integrated device.
+
+Prerequisite
+------------
+
+Connecting a scale requires the use of an **IoT System**.
+
+.. seealso::
+   - :doc:`../../general/iot/connect`
+   - :doc:`../../general/iot/devices/scale`
+
+Configuration
+-------------
+
+Scale connection
+~~~~~~~~~~~~~~~~
+
+#. :ref:`Access the POS settings <configuration/settings>`.
+#. Scroll down to the :guilabel:`Connected Devices` section and enable :guilabel:`IoT Box`.
+#. Select the scale in the :guilabel:`Electronic Scale` field.
+#. Click :guilabel:`Save`.
+
+.. tip::
+   Alternatively, click the :icon:`fa-ellipsis-v` (:guilabel:`Dropdown menu`) icon on a POS card and
+   click :guilabel:`Edit` to access this setting.
+
+Product configuration
+~~~~~~~~~~~~~~~~~~~~~
+
+In order to weigh products using an integrated scale, go to :menuselection:`Point of Sale -->
+Products --> Products`, create a product or open an existing product form, and configure it as
+follows:
+
+#. Ensure the :guilabel:`Point of Sale` checkbox is activated for the product to be available in
+   POS.
+#. On the :guilabel:`General Information` tab, define a :guilabel:`Sales Price` per :guilabel:`kg`.
+
+   .. note::
+      This step requires to enable the :doc:`Units of Measure
+      <../../inventory_and_mrp/inventory/product_management/configure/uom>` feature. To activate it:
+
+      #. Go to :menuselection:`Inventory --> Configuration --> Settings`.
+      #. Scroll down to the :guilabel:`Products` section and activate :guilabel:`Units of Measure`.
+#. Go to the :guilabel:`Point of Sale` tab and activate :guilabel:`To Weigh With Scale`. This
+   enables the product to be weighed directly on the connected scale at the POS.
+
+.. important::
+   The selected unit of measure for weighable products must be :guilabel:`kg` to ensure compliance
+   with **European regulations**.
+
+.. seealso::
+   :doc:`../../inventory_and_mrp/inventory/product_management/configure/uom`
+
+European regulations
+--------------------
+
+When using scales in commercial transactions, the database integrated with a scale must be
+configured to meet specific European requirements. This includes supporting at least three decimal
+places for accuracy and using proper rounding for units of measure, such as `kg` instead of generic
+`units`.
+
+If the database is not compliant, a red :icon:`fa-balance-scale` (:guilabel:`scale`) icon displays
+as a warning. Click this icon to view the reasons for non-compliance and then select
+:guilabel:`Apply changes` to automatically apply the necessary changes to the settings. Once the
+database meets all regulatory requirements, the :icon:`fa-balance-scale` (:guilabel:`scale`) icon
+turns green.
+
+.. image:: pos_hardware/legal-requirements.png
+   :scale: 75 %
+
+.. admonition:: Additional guidelines
+
+   Both the :doc:`customer <shop/customer_display>` and POS displays must have a minimum diagonal
+   size of 6 inches. For optimal readability, larger screens are recommended.
+
+Using a scale in PoS
+--------------------
+
+#. :ref:`Open a POS session <pos/session-start>`.
+#. Select the product to weigh on the order screen or scan its barcode.
+#. Place the product on the scale and wait for the weight to be displayed in the popup window.
+#. Once the weight is determined, the price is automatically computed.
+#. Click :guilabel:`Order` :icon:`fa-angle-double-right` to add the product to the cart.
+#. Remove the previous product from the scale.
+
+.. image:: pos_hardware/weigh.png
+   :alt: weighing window
+   :scale: 85 %
+
+.. important::
+   Make sure the scale returns to `zero` before weighing a new product. If it does not, the
+   :guilabel:`Order` :icon:`fa-angle-double-right` button remains unclickable until it is reset.