techOMS tracks inventory movements and availability to ensure accurate order fulfillment and stock management. Understanding how different order statuses and actions affect your inventory levels is crucial for maintaining accurate stock counts across your network.

This article explains the definitions of different inventory levels and how operational actions, such as shipments and receipts, impact those quantities.

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TABLE OF CONTENTS

• Inventory Level Definitions
  • Bundle Inventory Availability
• Shipments and Receipts Status Impact

Inventory Level Definitions

The inventory engine in techOMS relies on four core metrics to determine stock availability:

• Total Quantity: The absolute physical count of an item currently residing in a warehouse.
• Allocated Quantity: The amount of inventory reserved for open sales orders that have not yet been fulfilled.
• Available Quantity: The sellable stock that is ready to be committed to new orders (calculated as Total Quantity minus Allocated Quantity and any protected stock).
• Incoming Quantity: The expected inventory from active purchase orders that are in transit but have not yet been received.

Bundle Inventory Availability

A Bundle SKU does not represent independently stocked inventory. Instead, techOMS derives its available bundle quantity from the current Available Quantity of the Product Variants configured as required Bundle Parts.

To determine the available bundle quantity, techOMS considers both the Available Quantity of each required component and the Quantity configured for that Bundle Part. The system calculates how many complete bundles each component can support, and the component that supports the fewest complete bundles determines the final Bundle SKU Available Quantity.

Only complete bundles count toward availability, so fractional bundle quantities are not possible. If any required component has no available inventory, including a zero or unavailable quantity, the resulting Bundle SKU Available Quantity is zero.

For example, if Component A has an Available Quantity of 10 and requires 1 unit per bundle, it supports 10 complete bundles. If Component B has an Available Quantity of 10 and requires 2 units per bundle, it supports 5 complete bundles. Therefore, the Bundle SKU Available Quantity is 5.

When an eligible Bundle SKU is included in a Full Inventory Synchronization to a Sales Channel, techOMS sends the currently calculated bundle quantity rather than treating the Bundle SKU as independently stocked inventory.

	In techOMS, the definitions above primarily apply to physical warehouses. For virtual warehouses, these quantities represent the real-time aggregated sum of their physical members. For detailed calculation rules, please refer to Understanding Virtual Warehouses and Virtual Inventory [Information].

	Inventory allocation can now occur at a granular Lot Number dimension for lot-tracked products. For detailed information on how allocation impacts specific lot quantities, refer to Understanding Lot and Serial Numbers [Information].

For a visual overview of how stock management interacts with other subsystems, refer to techOMS Feature Operations Diagram [Information].

Shipments and Receipts Status Impact

As orders progress through their lifecycle, the inventory levels automatically adjust to reflect the physical and logical reality of your stock.

	Shipments and receipts are processed strictly against physical warehouses. Virtual warehouses are currently read-only and do not alter the operational workflow of an order.

The following table details how specific order statuses impact your physical inventory metrics:

	For a detailed definition of what each status means within the order lifecycle, please refer to Sales and Purchase Order Statuses Definitions [Information]. For complete details on the internal fulfillment workflow and its inventory behavior, refer to Understanding the techOMS Packing Module [Information].