# Inventory

## **Material Inventory Management**

The AI Scheduler includes functionality to manage material inventory based on scheduled production orders. All consumed and produced materials are tracked in detail across various transaction types:

### **Replenishment Orders**

These represent inbound inventory derived from MRP or ERP systems, modelled within the Scheduler to account for inventory builds. Each Replenishment Order includes:

* Material Code
* Quantity
* Arrival Date (when the material will be on site and available for consumption)

By tracking Replenishment Orders, the Schedule ensures that planned activities align with material availability.

### **Consumption Events**

These occur when scheduled Orders consume specific materials, drawing down on available inventory. Each time an Order is scheduled, the system automatically calculates and deducts the required materials from inventory levels.

**Inventory Snapshots**

These capture the inventory position for a material at a specific point in time. Snapshots are useful for:

* Stock taking and reconciliation
* Calibrating Scheduler inventory levels with actual warehouse quantities

### **Inventory Visualisation**

The Inventory Draw Down Graph displays inventory levels for each material type, showing a forward projection of how scheduled activities will impact inventory through both inbound replenishments and consumption events.

<figure><img src="/files/giHfgtD5HwTKdNiYWKye" alt=""><figcaption></figcaption></figure>

The graph above shows material inventory impacts by date. Min and max threshold positions are visible also. These min/max levels are used to indicate either a low inventory position, or an excess inventory position for each material. These are set in the [Materials](/tillit/knowledge-base/scheduler/setting-up-the-scheduler/configuration/materials.md)Configuration section of the system.

## Hourly Inventory

**Hourly Inventory** is a setting in the Scheduler Settings sidebar within a Scenario. When enabled, inventory is calculated in hourly intervals rather than using the event start time.

With Hourly Inventory enabled, the distribution of production over consumption quantities is spread across fixed hourly buckets proportional to productive time. This provides a more granular and accurate picture of how inventory levels change throughout the day.

### Enabling Hourly Inventory

1. Open a Scenario in the Scheduler.
2. Open the ***Scheduler Settings*** sidebar.
3. Enable the ***Hourly Inventory*** toggle.

{% hint style="info" %}
When Hourly Inventory is disabled, inventory calculations use the event start time as the reference point for all consumption and production transactions.
{% endhint %}

### Filtering the Inventory

### By Status

Click on the filtering button next to the search bar.

<figure><img src="/files/U4VduZdPzWqVrELdNqSR" alt=""><figcaption></figcaption></figure>

You will be presented with options to filter.

<figure><img src="/files/CiFHS3qMb5aW44EeoZd4" alt=""><figcaption></figcaption></figure>

As shown above, materials may have different avator colours, based on how material levels are compared to their configured thresholds.


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