Tabla de contenidos

Gestión avanzada de stock

La version 1.5 de PrestaShop cuenta con un nuevo menú de gestión de stock: que además de listar las cantidades disponibles de cada uno de sus productos , le permite registrar los almacenes que tenga y obtener de cada uno de ellos una visión adecuada del stock que manejan, sus movimientos, sus tranferencias, sus pedidos de suministros, etc.

No todos los comerciantes tendrán la necesidad de utilizar esta funcionalidad. Por lo tanto, esta es opcional, ya que la herramienta de gestión de stock de Prestashop 1.4 está todavía disponible, y ha sido rediseñada .

Puede activar el menú de gestión avanzada de stock dirigiéndose a la página de preferencias "Productos", donde encontrará en la parte final la sección "Inventario de productos". Seleccione "Sí" para la opción "Habilitar las opciones avanzadas del inventario".

Conceptos generales

Para evitar confusiones con el gestor de inventario de la versión 1.4, y ver las posibilidades que ofrece la nueva funcionalidad de gestión avanzada de stock de la versión 1.5 de Prestashop, debe imaginar dos conceptos distintos: las existencias físicas y las cantidades de productos disponibles para la venta.

Cantidad de productos disponibles para la venta

Esta es la misma funcionalidad que presenta el gestor de inventario disponible desde PrestaShop 1.4.x. Esta es la cantidad de productos que se muestran en la tienda para cada producto y combinación de productos. Esta es la cantidad que define si el producto se puede pedir o no (a menos que la opción "Permitir ventas de productos que no están en stock" se encuentre habilitada). Esta cantidad puede ser modificada manualmente para cada producto y combinación de producto.

En PrestaShop 1.5.x, esta cantidad puede ser determinada automáticamente de acuerdo a las existencias físicas del producto afectado. En un escenario multitienda, la cantidad es definida para cada tienda.

En consecuencia, a lo que antes llamabamos "stock" en PrestaShop 1.4.x, es ahora llamado "cantidad de productos disponibles para la venta" en PrestaShop 1.5.x.

Existencias de productos (físicamente almacenados)

Esto corresponde a la gestión de productos existentes almacenados en uno o varios almacenes . Este es el nuevo concepto otorgado a "stock" en PrestaShop 1.5.x.

Esta nueva característica de gestión de existencias incluye los movimientos de stock, la valoración del stock, la transferencia de stock entre almacenes, la integración del modo multitienda y la gestión de pedidos de suministros.

También hace que sea posible tener en cuenta la noción de existencias reales . Al mismo tiempo, un producto puede tener existencias en stock, pero no estar disponible para la venta debido a que todavía hay clientes que lo pidieron y a los que todavía no se les ha enviado. Ese mismo producto puede tener una orden de suministro en curso, y por lo tanto aún no contabilizado en las existencias físicas.

El stock real es por tanto constituido por las unidades físicas en existencia que un almacén tiene disponible, a las que añadiremos las cantidades que se pidieron a los proveedores, y de la que restamos las cantidades pedidas por los clientes y que todavía no han sido enviadas.

Utilizando el nuevo gestor de stock 

¿Estoy obligado a utilizar el nuevo gestor de stock?

No tiene ninguna obligación para utilizar el nuevo gestor de stock , así como tampoco tiene ninguna obligación para utilizar la funcionalidad "cantidad de productos disponibles para la venta".

Tanto para activar la funcionalidad "cantidad de productos disponibles para la venta" como la de existencias de productos, deberá dirigirse a la página de preferencias "Productos", donde encontrará en la parte final la sección "Inventario de productos". Seleccione "Sí" para la opción "Habilitar las opciones avanzadas del inventario". Primeramente debe habilitar el gestor básico de stock para poder habilitar el gestor avanzado de stock.

No quiero cambiar ninguna configuración de PrestaShop 1.4.x., ¿qué debo hacer?

Si no desea utilizar el nuevo gestor avanzado de stock de PrestaShop 1.5, y está satisfecho con la forma en que PrestaShop 1.4 gestiona la cantidad de productos que tiene en stock, tan sólo tiene que activar the old-style stock management manager, y no la funcionalidad del gestor avanzado de stock: diriíjase a la página de preferencias "Productos", y encuentre la sección "Inventario de productos", y elija "Sí" para la opción "Activar el manejo automático del inventario", dejando la opción "Habilitar las opciones avanzadas del inventario" en "No".

La funcionalidad "cantidad de productos disponibles para la venta" estará ahora centralizada en la pestaña "Cantidades" de la ficha del producto: al crear un nuevo producto o editar un producto existente, aparecerá esta pestaña junto a todas las demás, a la izquierda de la pantalla.

¿La funcionalidad del gestor avanzado de stock se adapta a mis necesidades?

La nueva funcionalidad del gestor avanzado de stock le permite gestionar las unidades en existencia de sus productos. Esta funcionalidad se adapta a su negocio si:

• Tiene que gestionar el número de unidades de los productos que tiene en existencia y que vende a través de su tienda(s).
• Tiene al menos un lugar de almacenamiento (almacén) que gestiona usted mismo.
• Pide la mayoría o todos los productos que vende en su tienda a uno o más proveedores.
• Necesita conocer las estadísticas de sus existencias y de su almacén(es).

Esta funcionalidad no se adapta a sus necesidades si:

• No gestiona el número de unidades de los productos que tiene en existencia en su tienda.
• Ya utiliza un sistema / herramienta / programa para gestionar las existencias de su tienda, y no desea cambiar nada porque está satisfecho de como lo hace.

Presentación de la interfaz back-office para gestionar el stock

Mejoras en la ficha del producto

Gestión de cantidades

Cuando la opción "Activar el manejo automático del inventario" está activa, todos los productos tienen una nueva pestaña en su página de administración, llamada "Cantidades". Esta interfaz clara y sencilla le permite gestionar las cantidades disponibles para la venta en su tienda(s) para un producto específico, y todas sus posibles combinaciones.

Esta página se abre con una sección explicativa, que le recomendamos que lea completamente. Esa sección es seguida por la propia interfaz de gestión de cantidades disponibles, que se abre con tres opciones:

• Quiero usar el sistema de gestión avanzada de existencias para este producto.
• Cantidades disponibles para el producto actual y sus combinaciones están basadas en el inventario de los almacenes.
• Quiero especificar cantidades disponibles manualmente.

Por defecto, la tercera opción ("Quiero especificar cantidades disponibles manualmente") se encuentra activa. Siempre y cuando no marque la primera opción ("Quiero usar el sistema de gestión avanzada de existencias para este producto"), las cantidades son gestionadas de la misma forma que eran gestionadas en la version 1.4 de PrestaShop, lo que significa que tendrá que añadir manualmente las cantidades, y Prestashop eliminará las cantidades que venda.

Si prefiere sincronizar las cantidades disponibles conas las existencias de su almacén, tiene que cambiar el método de gestión de cantidades:

1. Marque la casilla "Quiero usar el sistema de gestión avanzada de existencias para este producto" para cambiar el método.
2. Esta acción hace que la segunda opción, "Cantidades disponibles para el producto actual y sus combinaciones están basadas en el inventario de los almacenes", pase a estar disponible. Seleccione esta opción para sincronizar la cantidad disponible de este producto con el stock de su almacén.

Tan pronto como haya seleccionado la segunda opción, la columna "Cantidad" de la tabla dejará de ser modificable: las cantidades son ahora gestionadas a partir de su stock.

El resto de esta página se explica en el capítulo "Añadir Productos y Categorías de productos" de esta guía.

Gestión de proveedores

Ahora puede establecer más de un proveedor para un producto determinado. Para cada proveedor asociado a un producto, puede establecer el número de referencia del proveedor y un precio de compra por defecto para ese producto, así como a su combinación. Esta información se utiliza cuando se realiza un pedido al proveedor.

Gestión de almacenes

Si el gestor avanzado de stock está habilitado, una pestaña "Almacenes" aparece en la ficha del producto, donde puede especificar en qué almacén(es) se encuentra el producto y cada una de sus combinaciones. También puede especificar la ubicación  del producto y sus combinaciones.

Primeramente, deberá crear al menos un almacén (véase más adelante) antes de asociar un producto a este y establecer la ubicación del producto en él. Este paso es esencial: es importante para establecer al menos un almacén en el que un producto pueda ser almacenado. Esto tendrá un impacto considerable en la preparación de pedidos en el contexto multi-envío.

Gestión de almacenes

En versiones 1.4.x, el gestor de stock estaba ligado estrictamente a la cantidad de producto disponible para la venta, el cual una vez establecido variaba en función del movimiento de stock sin tener en el concepto de almacén.

El gestor avanzado de stock hace que sea posible la creación de uno o más almacenes. Para crear uno, diríjase a la página "Almacenes" bajo el menú "Existencias".

Para crear un nuevo almacén, debe rellenar los siguientes campos:

• Referencia y Nombre. El identificador de referencia único para el almacén y su nombre. Asegúrese de utilizar un nombre reconocible e identificativo: ya que deberá diferenciar fácilmente a los almacenes disponibles en una lista desplegable.
• Direcciones, Codigo Postal, Ciudad y País. La dirección física del almacén. Estas información será utilizada para realizar pedidos a sus proveedores.
• Administrador. La persona que está a cargo del almacén, elija una de entre los empleados registrados en su tienda. Si la cuenta de ese empleado no ha sido creada todavía, debe crear esta primeramente.
• Transportistas. Los transportistas que están autorizados para enviar pedidos a este almacén. Mantenga presionada la tecla "Shift" para seleccionar más de un transportista.
• Tipo de administración. Un método de valoración contable, en base a la normativa de su país. Consulte la sección "Método de valoración" de este capítulo para obtener más información.
• Divisa para la valoración del inventario. Una divisa para valorar el stock de este almacén (a elegir entre las divisas registradas).

Be careful of the carriers you choose to authorize, as this will a huge impact on the order preparation in the multishipping scenario.

In the situation where you manage more than one shop, you will also have to associate each shop to one or more warehouses. This enables you to set from which warehouse the client orders for a given shop can be sent.

Once the warehouse has been created, you are taken back to the list of warehouses. Click the "View" icon on the right of its row to access a bird's eye view of its information, including the references of all the products stored in it, the sum of all the available quantities, a global accounting valuation, details of the stored products, and the history of the stock movements for that warehouse.

Each warehouse page also contains two links at the bottom:

• Click here if you want details on products in this warehouse. Takes you to the warehouse's "Instant Stock Status" page.
• Click here if you want details on what happened in this warehouse. Takes you to the warehouse's "Stock Movement" page.

Stock management

Now that you have created one or more warehouses, you have to set stock for each of them. To that end, go to the "Stock Management" page under the "Stock" menu.

All available products from your catalog are listed in this interface. If you have any combination of product, you can manage them from the "Details" action (the "+" icon).

In your daily activities, you can use this interface in order to manually:

• "Up arrow" icon. Add stock for a specific product in a given warehouse.
• "Down arrow" icon. Remove stock for a specific product in a given warehouse.
• "Sideways arrows" icon. Transfer stock from one warehouse to another.

The two last icons only appear if there already is some stock of the chosen product in any warehouse.

Adding stock to a warehouse

To add more stock to a product, use the "Add stock" action (up arrow) for said product or product combination. A new page opens, containing a form where the most important information is displayed in order to help you identify a product with certainty (reference, EAN13 and UPC code, and name). This information cannot be changed from this form, therefore it is grayed out.

You must then set:

• Quantity to add. This must be a positive number. You cannot remove stock by using a negative number.
• Usable for sale?. Whether that quantity of stock is usable for sale, or simply stored until you make a decision about it. In the second case, it is considered "reserved".
• Warehouse. The warehouse where the stock is to be added. The form lets you add product stock to only one warehouse at a time. If you need to add stock for this product in more than one warehouse, you must make the entire adding process again for each warehouse.
• Unit price (tax excl.). The unit price for the product at the time of the addition. This is for valuation purpose.
• Currency. The currency of the unit price. If the currency is not available, you can create one from the "Currencies" page, under the "Localization" menu, or import from the "Localization" page under the "Localization" menu, by importing the localization pack of the country whose currency you want to use.
• Label. A label for the stock movement that you are generating, for future reference. This is purely informational.

Removing stock from a warehouse

When you want to remove a certain quantity of product stock, you must use the "Remove stock" action (down arrow, available only when there already are products in stock). A new page opens, containing a form where the most important information is displayed in order to help you identify a product with certainty (reference, EAN13 and UPC code, and name). This information cannot be changed from this form, therefore it is grayed out.

You must then set:

• Quantity to remove. This must be a positive number. You cannot add stock by using a negative number.
• Usable for sale. Whether this quantity should be removed from the usable quantity or from the whole physical quantity (including the reserved one).
• Warehouse. From which warehouse that quantity should be removed. The form lets you remove product stock from only one warehouse at a time. If you need to remove stock for this product in more than one warehouse, you must make the entire removing process again for each warehouse.
• Label. A label for the stock movement that you are generating, for future reference. This is purely informational.

Transferring stock from one warehouse to another

The stock transfer enables you to transfer stock from one warehouse to another, or from one status to another (usable in store / reserved) within a single warehouse. Click on the "Transfer stock" action (sideways arrows, available only when there already are products in stock). A new page opens, containing a form where the most important information is displayed in order to help you identify a product with certainty (reference, EAN13 and UPC code, and name). This information cannot be changed from this form, therefore it is grayed out.

You must then set:

• Quantity to transfer. This must be a positive number.
• Source Warehouse. The warehouse from which you want to transfer some products, or where you want to change the status of some of the stock.
• Usable for sale in source warehouse?. Whether the quantity to remove from the "source" warehouse should be from the "usable for sale" stock or the "reserved" stock.
• Destination Warehouse. The warehouse to which you want to transfer some products. If you simply want to change the status of some of the stock from your source warehouse, make sure to select the same warehouse in this form.
• Usable for sale in destination warehouse?. Whether the quantity to add to the "destination" warehouse is usable for sale or reserved. This is also the option to use when you simply want to change the status of some of the stock in the source warehouse:
  • If you do not want to change status while moving warehouses: make sure both "Use for sale?" option are set alike.
  • If you do want to change status, whether within the same warehouse or while moving warehouses: make sure both "Use for sale?" option are set differently.

For these operations, all that is related to valuations is run automatically according to the management method chosen for each warehouse. Currency conversions work the same.

Stock movement

This interface enables you to view the stock movement history. You can display all of the stock movements, or only those tied to one warehouse. Filters can be applied to refine your search.

When the "Filter movements by warehouse" drop-down list is set to a warehouse, you can make a CSV export of the obtained list.

Stock instant status

This interface enables you to have an instant overview of your stock, either globally or per warehouse. The numbers are current.

For each product or product combination in stock, the following indicators are available:

• Physically available stock.
• Stock that is usable for sale.
• Actual quantity (as explained previously).
• Unit price (tax excluded).
• Product valuation depending on the physical quantity of stock.

As appropriate, and depending on the chosen valuation method, the breakdown of the unit prices and of the associated valuations is available by clicking on the "Details" action (the "+" icon).

Moreover, for a given warehouse, you have two ways to export the current list in CSV format:

• Export the indicators tied to the quantities.
• Export the indicators tied to the valuation.

Stock coverage

This interface enables you to overview the coverage of your stock. The coverage indicates how many days your current stock can last. This information is very useful, as it helps you predict the necessary restocking. Coverage is calculated according to previously registered stock movements.

You can get the stock coverage for all the warehouses, or for a single warehouse.
You can also set the time period (one week, two weeks, three weeks, one month, six months, a year) of registered stock movement which is to be taken into account when calculating the coverage.
Finally, you can highlight the stock coverage which is below a given number of days. This will highlight the relevant products, helping you identify them quicker.

In order to view the stock coverage of product combinations, you have to click the "Details" action of the product (the "+" icon).

Supply orders

One of the major features of the stock manager is the ability to place orders to suppliers so as to better manage your restocking.
This interface enables you to manage all your supplier orders, as well as reusable order templates.

The order template creation process is the same as the order creation process (except for the "Expected delivery date" field). We will therefore only explain the order creation process.

Creating a new order

The creation of an order for a supplier can be broken down in two steps: creating the order, then adding products to it.

So, the first step is to define the order's headers:

• Set the unique reference number. This is an administrative number; do not put any seemingly unique number.
• Select the supplier. If the supplier you want is not in the drop-down list, you must create it in the "Suppliers" page, under the "Catalog" menu.
• Select the warehouse which will take delivery of the order. You must have created at least one warehouse.
• Select the currency in which the order will be formalized. If needed, you can create or import a currency using, respectively, the "Currencies" or "Localization" page under the "Localization" menu.
• Select the language in which the order will be formalized. If needed, you can create or import a language using, respectively, the "Languages" or "Localization" page under the "Localization" menu.
• If needed, set the global discount on the order (in percentage). You can just leave it at "0" if you do not have a discount on this order.
• If needed, set the physical quantity of a product below which all the products have to be restocked, and are therefore to be added to the order automatically. Each pre-added product will be ordered with a quantity equal to the entered quantity, minus the already available quantity.
• Set the planned delivery date.

The second step consists of adding actual products to the order. To make that second step, you can either:

• Click on the "Save order and stay" button.
• Click on the "Save" button. You are taken back to the list of supply orders: click on the "Edit" action for the order you just created.

The interface of the order creation form has been updated with a second form below the previously-filled fields. You must use that second form to add products to your order, using the integrated search engine. The products that you add appear in a new list.

For each product, you must set or update the unit purchase price (tax excluded), the quantity to order, any applicable tax rate, and any product-specific discount.

Once the order is created, it appears in the list with the "Creation in progress" status. This status enables you to view and edit the information that were previously entered as well as add products to the order. You will not be able to change the order once you change its status to "Order validated".

You need to follow through for the whole order process, always indicating its status change in PrestaShop's interface. This is what the first action button of the list ("Change state") is for: click on it to reach the status changing form. See the "Changing the status of a supplier order" section below for more information on the available statuses, and see the "Registering the reception of products" to understand how to follow through on a supply order.

The "+" icon in the supply order list displays the order's history, which enables you to see who did what and when.

Order template creation

The whole point of creating a template is to serve as a basis for new orders.

The supply order template creation process is the same as the one for a real order, except that:

• You do not have to set a planned delivery date.
• The "Automatically load products" value will be the quantity to order for the loaded products, not the stock/typed value difference.

Moreover, contrary to an ordinary supply order:

• A template does not have a status.
• A template can be deleted.
• A template has no edit history.

Once you have created your template, you only need to use the "Use this template to create a supply order" action from the template list (the "two windows" icon) to start creating an order.

Changing the status of a supply order

Each order has many available actions (in the "Actions" column of the order list). One of them enables you to edit the status: the "Change state" one. There are six possible default statuses, but you can add your own (see the "Configuration" section of this chapter).

An order's status helps you understand your stock movements at a glance thanks to their color code. Here is the significance of the six default statuses:

1. Creation in progress. This is when you are in the first step of the creation step, where you can edit everything.
2. Order validated. This status validates the order and freezes the information it contains (purchase prices, quantities, etc.). At this step, a new action appears in the "Actions" column, which enables you to edit the invoice that is sent to the supplier in PDF format.
3. Pending receipt. As soon as the supplier has received and validated your invoice, you have to change the supply order's status to "Pending receipt".
4. Order received in part. As soon as a delivery is made, you must switch the order to this status. There can be multiple deliveries, and a delivery history is logged for each product. The restocking is made with each delivery.
5. Order received completely. Once an order is completely delivered, or partially because of a partial cancellation, it should be switched to this status. Stocks are unaffected in this case, and it is possible to perform actions on the order.
6. Order canceled. This status is to be given to canceled orders, whatever the reason. Stocks are unaffected in this case, and it is not possible to perform actions on the order.

With each status change, the status drop-down selector evolves in order to present only the possible status changes, in regard to the current status. The unavailable statuses are grayed out.

Details of a supplier order

Clicking the "View" icon from the list of supply orders enables you to get a synthetic view of your order.
You can also download the invoice generated as a PDF file (provided the order is validated by you) from the list of orders or from the status change page.

The "Details" action (the "+" icon) enables you to display the status change history for the current order.

Registering the reception of products

You must change the status of your supply order within PrestaShop as soon as actions are taken in the real world. This is done using the "Change state" icon in the "Actions" column from the list of orders. The form in this page always pre-selects the next logical status, but you are free to choose any of the other statuses available.

While you are preparing the supply order, keep its status to "Creation in progress". Once you are done preparing the order, switch it to "Order validated", then print the invoice PDF and send it to your supplier. As soon as your supplier confirms the reception of the invoice, change the status to "Pending receipt".

During the "Pending receipt" and "Order received in part" statuses, a new action is available in the "Actions" column. Using the "truck" icon, the "Update ongoing receipt of products" action enables you to register the reception of products for a given order during the current day.
The form that opens after clicking that "truck" action enables you to see how many items were expected, and to indicate the quantity of product delivered for each product that day. Click the "Update selected" button to mark the selected products as received with the number of items you indicated in the "Quantity received today?" field. The checkbox on the left of each row must be checked for PrestaShop to take that line into account.

For each product, a reception history is available ("+" action), as well as an indication of the received quantity, the expected quantity, and the remaining quantity. If the "received quantity" is equal to the "expected quantity", the corresponding row is highlighted in green. If you received more than expected, it is in red.

When all the products from the order have been received, you must manually change the supply order's status to "Order received completely". This ends the supply order process, and a new action appears: "Export" (with a Microsoft Excel icon), which you can use to download a CSV file of all the information pertaining to that order.

CSV export

Using the supply orders interface, you can filter the list of orders or the details of these orders so that you may export it, according to the current filters (reference, supplier, etc.).
Moreover, you can choose not to display the orders that are completed or canceled, using the appropriate checkbox.

Configuration

The configuration page enables you to customize the way certain parts of the advanced stock manager work:

• The available statuses for a supplier order.
• The labels for the stock movements.
• The default statuses for some stock movements which are used throughout the solution.

Adding a new default order status

You can add custom statuses corresponding to your business line. You cannot delete a default status.

The list on the main page enables you to get a better perspective of the available statuses, and how they can impact an order.

Click the "Add new" button to reach the creation form.

A status has a label, a color, and enables you to define whether:

• The order can be edited. As long as the order is editable, it cannot be sent to the supplier.
• The order delivery note can be generated.
• Product reception is ongoing, meaning that you have not yet received all the ordered products.
• Product delivery is still pending, meaning that you are still waiting for any product to arrive.

Adding a stock movement label

It is possible to add more labels to stock movements. Click the "Add new" button from the "Stock movement labels" section to access the creation form.

You simply have to set a name for the label, and indicate whether it pertains to stock increase or decrease. Those labels can be used when adding/removing/transferring stock manually (as explained earlier).

Changing default supply order labels

It is possible to choose the default stock movement labels in the following standard cases:

• Increasing stock (manually).
• Decreasing stock (manually).
• Decreasing stock following the shipment of a client order.
• Increasing stock following the delivery of products from a supplier's order.

Management rules

In this section, we will explain the management rules that are automatically applied to stock management.

Each stock entry and exit must be valued. That is why each unit product stock must be associated with a tax-excluded unit price (either purchase price or production cost), whether through supplier order, or manual entry. Each product exit must also be valued.

There are three main valuation methods that you can choose, depending on your business activity or on the tax laws of each warehouse's country or origin:

• FIFO (first in, first out).
• LIFO (last in, first out).
• AVCO (Average Cost, or Weighted Average Cost per Unit).

With the FIFO and LIFO methods, each unit product from the stock has a purchase price that has been fixed when it entered the stock. This way, for a given reference available in 100 units, 40 units can have a purchase price of X, and 60 can have a purchase price of Y. When an order is made, and depending on the chosen method, you know which product to use and with which purchase price, which enables you to precisely manage a potential order return and put the products back into stock with their original purchase price.

The table below gives you an example of the FIFO method of stock valuation. In this example, you have a two-input table (price and quantity per type of stock movement). You add more columns as we receive new products with new prices.

The stock value during the instant state in this case is 6,900.

The table below illustrates how the FIFO method can be used to value stock. We use the same entry and exit values as in the previous example. The principle remains the same as in the FIFO example, except that during exits, we primarily use the units that were the last to be entered in the stock.

The stock value during the instant state in this case is of 6,700.

The third most frequently used method for stock valuation is Weighted Average Cost (AVCO). The AVCO calculation is done after each new entry in the stock.

For a given product, the AVCO calculation is done using this formula:

With:

• QS = Quantity of products currently in stock, or initial stock.
• QA = Quantity of products to be added to stock.
• UP = Unit Price (tax-excluded purchase price, or production cost).

The table below illustrates the evolution of the AVCO with the example of a product initially with 20 units in stock, and purchased at a price of 2. The new entry/exit will be valued as follows:

*: Calculation details: ((8 remaining product in stock * 2) + (20 products to add * 3.4)) / 28 total products = 3.

At the Y date, we calculated the AVCO according to the number of products added in the stock their unit prices. Therefore, all products in stock now have a reassigned unit value, which depends on the new AVCO.