Update Customs numbers

Author: mial-odoo

content/applications/finance/fiscal_localizations/mexico.rst

@@ -1569,7 +1569,7 @@ configuration:
 - :guilabel:`Inventory Valuation`: :guilabel:`Automated`
 
 .. note::
-   The feature works regardless of wheter the :doc:`Valutation 
+   The feature works regardless of whether the :doc:`Valutation 
    <../../inventory/product_management/inventory_valuation> is set as 
    :guilabel:`Periodic (at closing)`or :guilabel:`Perpetual (at invoicing)`.
 
@@ -1587,28 +1587,37 @@ After configuring the product, follow the standard :doc:`purchase flow
 
 Create a purchase order from :menuselection:`Purchase --> Orders --> Purchase Order`. Then, confirm
 the order to display a :guilabel:`Receipt` smart button. Click on the :guilabel:`Receipt` smart
-button and :guilabel:`Validate` the receipt.
+button, add the lots or serial numbers and :guilabel:`Validate` validate.
 
 Go to :menuselection:`Inventory --> Operations --> Landed Costs`, and create a new record. In the
-:guilabel:`Transfer`, add the receipt that was just validated, add the :guilabel:`Customs number`
-and in the :guilabel:`Additional Costs` tab, add the :guilabel:`Pedimento` product.
+:guilabel:`Transfer`, add the receipt that was just validated, add the :guilabel:`Customs number`.
 
-Optionally, it is possible to add a cost amount. After this, :guilabel:`Validate` the landed cost.
-Once :guilabel:`Posted`, all products related to that receipt have the customs number assigned.
+.. tip::
+   While it is possible to add costs related to the customs number on this part of the process, it
+   is highly recommended to create a landed cost from a vendor bill from your customs agent. Learn
+   more about :doc:`Landed Costs here`
+   <../../inventory_and_mrp/inventory/product_management/inventory_valuation/landed_costs>
 
 .. warning::
-   The :guilabel:`Pedimento Number` field is not editable once it is set, so be careful when
-   associating the correct number with the transfer(s).
+   The :guilabel:`Pedimento Number` field is not editable once it is set, and cannot be repeated,
+   however it is possible to fix the number on the lot later by selecting a different landed cost.
 
 .. image:: mexico/mx-landing-inventory.png
    :alt: Customs number on a landed costs Inventory record.
 
+The customs number assigned to a specific lot or serial number can be found on the its registry on
+:menuselection:`Inventory --> Products --> Lots/Serial Numbers`, the :guilabel:`L10N Mx Edi Landed Cost`
+field can be edited at any time to fix any mistakes that could ocurr during the landed cost, this 
+changes the :guilabel:`Customs number` and the name.
+
 Next, create a sales order and confirm it. Click on the :guilabel:`Delivery` smart button that
-appears, and :guilabel:`Validate` the delivery order.
+appears, and carefully review the assigned lots/serial numbers to make sure they are the desired
+values, after that :guilabel:`Validate` the delivery order.
 
 Finally, :ref:`create an invoice from the sales order <accounting/inv-process/so>`, and confirm it.
-The invoice line related to the product has a customs number on it. This number matches the customs
-number added in the landed cost record created earlier.
+The invoice lines are created according to the distribution of the delivery order, in cases where
+more than one customs number were selected, Odoo will split the invoice lines by quantity and 
+customs numbers.
 
 .. image:: mexico/mx-landing-invoice.png
    :alt: Customs number on confirmed sales order product.
@@ -1618,7 +1627,7 @@ number added in the landed cost record created earlier.
 Delivery guide
 --------------
 
-A `Carta Porte <https://www.sat.gob.mx/portal/public/tramites/complemento-carta-porte>`_ is a bill 
+A `Carta Porte <https://www.sat.gob.mx/portal/public/tramites/complemento-carta-porte>` is a bill 
 of lading: a document that states the type, quantity, and destination of goods being carried.
 
 On July 17th, 2024, version 3.1 of this |CFDI| was implemented for all transportation providers,