# Overview
You can access this section from the left menu [**Inventory >> Overview**](https://app.zonwizard.com/analytics/p-inventory/).
The **Inventory Overview** section gives you a complete and up-to-date view of your inventory, both in your internal warehouse and in Amazon warehouses.
Specifically, you can use this view to:
* Evaluate inventory in the internal warehouse
* Make decisions about which products and quantities to purchase from suppliers
* Monitor inventory in Amazon warehouses
* Decide which products and quantities to send to Amazon fulfillment centers
* Receive notifications for low-stock products, with automatic suggestions for optimal quantities
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To receive notifications with adequate advance notice and have an optimal estimate of the lots to reorder, you can check or modify these settings:
* [**the supply lead time**](https://docs.zonwizard.com/inventory/inventory/inventory-details)
* [**the optimal stock calculation coefficients**](https://docs.zonwizard.com/inventory/settings-analytics-tool)
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The table is divided into two main areas:
* **Internal Inventory** (left side): inventory in your warehouse, prep center, or at suppliers
* **Marketplace Inventory** (right side): inventory in Amazon FBA warehouses or quantities allocated for FBM listings
***
## On-hand Internal Warehouse
The left side of the dashboard contains all the information relating to the products managed internally.
#### Available columns
* **Photo**
\
Product identification image.
* **Product**\
Product name .
* **Internal SKU** \
Unique product identification code in the internal warehouse.\
It can be edited by clicking directly in the field.
* **ASIN**\
Unique code that identifies the product on Amazon.
* **Dimensions and Weight**\
Physical specifications of the product, editable by clicking on the value.\
Suppliers
* **Suppliers**\
List of suppliers associated with the product.
* **Internal Inventory**\
Currently available quantity and estimated days of supply.\
The quantity can be updated manually.
* **Supply lead time**\
Interval (in days) between order placement from the supplier and arrival in the warehouse.The value is editable.
* **Next purchase order**\
Estimated date, remaining days, and recommended quantity for reordering.\
The values are automatically calculated based on the supply lead times and parameters defined in **Inventory Settings**.
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**Note**\
Each internal product can be associated with multiple marketplace products.\
For example, the internal SKU `0001` can be sold on Amazon (FBA and FBM) and on Shopify with different SKUs.
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***
### Internal warehouse information management
#### **Assign Internal SKU**
You can assign an **internal SKU** to each product, useful for inventory tracking.
\
This operation can be performed:
* directly from the **Overview** page
* in bulk mode from the [**Inventory >> Bulk Upload**](https://app.zonwizard.com/analytics/massive-upload/) section
#### **Set available inventory quantity**
You can indicate the quantity currently available for each product.
You can also do this:
* directly from the **Overview** view
* via [**Bulk Upload** ](https://app.zonwizard.com/analytics/massive-upload/)
From this view you can also:
* check the remaining **coverage days**
* Check the **recommended reorder quantities**, automatically calculated based on the parameters set in **Inventory Settings**
***
## Marketplace Inventory
The right side of the dashboard displays inventory information on integrated marketplaces (Amazon FBA and FBM).
### Displayed data
* **SKU ,ASIN and Short Name**\
Product identifiers in the relevant marketplace.
* **Sales over the last 30 days**\
A chart showing the trend in units sold, useful for identifying changes in demand..
* **Trend:** Graph showing unit sales trends, useful for identifying changes in demand.
* **Sales velocity (price /day)**\
Weighted average of sales over the last 30 days and the last week.\
Days out of stock are excluded from the calculation.
* **Marketplace Inventory**
* FBA: Quantity available in Amazon warehouses
* FBM: Quantity allocated per listing\
Also includes the estimated days of coverage.
* **Stock Value :** Total stock value in the Amazon warehouse
* **Shipping time to Amazon**\
Days required to send products from the internal warehouse to Amazon.\
Editable by clicking on the field.
* **Next Restocking**\
Expected date, days remaining, and recommended quantity to avoid out-of-stocks.\
The values are automatically calculated based on the **Inventory Settings** parameters.
#### Actions Column
* ⭐ **Favorite**: Mark the product for quick filters
* 🚚 **Shipped to Amazon /** **Stop Supply**: Enable or disable restock alerts
* **❌ Stop supply**: enable or disable restocking alerts
* 🔀 **Separate**: Separate products previously combined under the same internal SKU
* 👁 **Detail**: Opens the inventory detail tab
In this section you can also:
* monitor **days of available stock**
* check the **quantities to send to Amazon** to maintain the desired inventory level
If the same ASIN is sold with multiple SKUs, they are automatically associated with the same inventory product.
***
## Reorder products from the supplier
Path: **Inventory → Overview**
1. Filter products **To reorder**
2. Select products using the checkboxes
3. Click the **shopping cart icon**
The system automatically generates a purchase order.\
If the products belong to different suppliers, a separate order will be created for each supplier.
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**Note**\
You can also create orders automatically from the [**Inventory >> Purchase Orders**](https://app.zonwizard.com/analytics/supplier-order/list/) section
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***
## Replenish produtcs to Amazon
Path: **Inventory → Overview**
1. Filter products To be replenish
2. Select the products using the checkboxes.
3. Click the **truck** icon
4. Click **CREATE** to generate the inbound shipment
If the products belong to different integrations, a shipment will be created for each integration.
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**Note**\
You can also manage shipments from the **Inventory → FBA Shipments** section
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***
## Merge Inventory Products
You can merge products sold on different marketplaces under the same **internal inventory SKU**.
1. Select the products using the checkboxes.
2. Click **Merge Inventory**.
3. Select the main product in the modal.
4. Click **Merge**
***
## Filters
#### Quick filters
* Hide inactive listings
* Favorites
* FBA
* FBM
* To reorder
* To restock
* Stopped
* Out of stock
## Filter by columns
You can search within individual columns. Clicking on the column header opens a drop-down menu that allows you to filter and browse the data according to your needs.
## Customize columns
Using the side filter panel, you can select or hide the columns you want to display based on your preferences.
## Reset columns
To reset the column sorting, click on the "reset columns" icon on the side and confirm the operation by clicking the blue "reset columns" button.
***
## Search product inventory
You can use the search field in the top bar to locate products in the list.
You can search by:
* **short name** ([user-assigned](https://docs.zonwizard.com/profit/products/product-details))
* **SKU**
* **ASIN**
* **Brand**
* **Category**
## Inventory Report
From the **Inventory >> Overview** section, you can download:
* **Available Inventory (.xls)**\
Current quantities in the internal warehouse
* **Marketplace Inventory (.xls)**\
Available quantities on Amazon
* **Inventory on specific date (.xls)**\
Quantity as of a specific date, useful for year-end valuation
### Inventory on specific date
By selecting this report type, you can view the inventory status for a specific date.
A modal will open where you can select the following filters:
* Date
* FBA
* FBM
* All
Once selected, you can download in CSV or XLS format.
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The **inventory on date** report is useful for having the inventory situation as of December 31.
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