As an AI text$-$based model, I$\text{'}$m unable to directly create visual diagrams like those produced in Microsoft Visio. However, I can guide you through the steps of creating a BPMN $($Business Process Model and Notation$)$ diagram for the described process, and you can use this information to create the diagram in Visio.

Here's how you could represent the process using BPMN:

Start Event: Shipment Arrival

Exclusive Gateway: Check for Damaged Shipment

If shipment is damaged: End Process

If shipment is not damaged: Proceed

Task: Scan Inventory into System

Task: Notify Inventory Supervisor

Exclusive Gateway: Determine Inventory Destination

If large items: Forklift Area

If small items: Cart

If internal use: Internal Employees Room

End Event: Email Notification for Internal Employees $($if internal use$)$

Parallel Gateway: Check Inventory Loading

Task: Double Check Inventory Loading

Exclusive Gateway: Match Check

If matches: Send Confirmation Email

If doesn't match: Notify IT and Finance

Task: Receive Confirmation

End Event: End Process

You can represent these steps using the appropriate symbols and connecting them in Microsoft Visio. Use rectangles for tasks, diamonds for gateways, circles for events, and arrows to show the sequence of flow. Make sure to label each element appropriately according to the process steps described.