TABLE STRUCTURES & COLUMNS

All data is organized into structured Excel Tables (Ctrl+T) for dynamic referencing and formula integrity.

Inventory Overview (Primary Client View)

• Item ID: Text — Unique alphanumeric code assigned to each inventory item (e.g., R-2024-087).
• Item Name: Text — Descriptive name of the sample or material (e.g., CRISPR-Cas9 Plasmid Kit v3.1).
• Category: Text — Classification: Reagents, Biological Samples, Instruments, Consumables.
• Current Stock: Number — Available quantity in units (e.g., 12 tubes).
• Min Threshold: Number — Minimum stock level before reorder is recommended (e.g., 5).
• Last Updated: Date — Last date inventory was verified and updated by internal staff.
• Status: Text — Derived field: “In Stock”, “Low Stock”, or “Out of Stock” based on conditional logic.
• Available for Client Use?: Yes/No — Toggle indicating if the item is accessible to external researchers under collaboration agreements.

Item Details (Behind-the-Scenes, Read-Only for Clients)

• Item ID: Text — Matches Inventory Overview.
• Description: Text — Detailed technical specification, source, and storage requirements.
• Storage Location: Text — Shelf/Freezer code (e.g., “Fridge B-4”)
• Expiry Date: Date — Critical for biologicals or chemical reagents.
• Batch Number: Text — For traceability and compliance.
• Last Received From: Text — Supplier or collaborating lab name (visible only to internal users).
• Internal Cost Center: Text — Hidden from client view via cell protection.

Usage Log (Client-Facing)

• Date Requested: Date — Auto-populated when user enters request.
• Client Name: Text — Full name or institution of requesting researcher.
• Item ID: Text — Dropdown list sourced from Inventory Overview.
• Quantity Requested: Number — Must be ≤ Available Stock.
• Purpose of Use: Text — Brief description (e.g., “PCR optimization in project X”)
• Status: Text — “Pending”, “Approved”, or “Shipped” (editable only by internal admins).
• Expected Return Date: Date — Optional field for reusable items.

FORMULAS REQUIRED

• In Inventory Overview, column "Status":
  =IF([@Current Stock]=0, "Out of Stock", IF([@Current Stock]<=[@Min Threshold], "Low Stock", "In Stock"))
• In Item Details, column "Expiry Warning":
  =IF(TODAY()+30>[@[Expiry Date]], "Expiring Soon", IF(TODAY()>=[@[Expiry Date]], "Expired", "")) — Hidden from Client View.
• In Usage Log, column "Available Quantity":
  =VLOOKUP([@Item ID], InventoryOverview, 4, FALSE) - SUMIF(UsageLog[Item ID], [@Item ID], UsageLog[Quantity Requested])
• In Dashboards, Total Items Available:
  =SUM(InventoryOverview[[#All],[Current Stock]])
• Auto-populate "Date Requested" in Usage Log using: =TODAY() — locked for manual override.

CONDITIONAL FORMATTING

• Status Column (Inventory Overview):
  - “Out of Stock”: Red fill
  - “Low Stock”: Yellow fill
  - “In Stock”: Light green fill
• Expiry Warning (Item Details):
  - "Expiring Soon": Orange text on yellow background
  - "Expired": Red bold text — hidden in Client View via worksheet protection.
• Quantity Requested vs Available: In Usage Log, if requested quantity exceeds available, cell turns red with icon (⚠️).

INSTRUCTIONS FOR THE USER

This template is designed for research institutions to share inventory status with clients while safeguarding proprietary data.

1. Client Users: View the Inventory Overview and submit requests in Usage Log. Do not edit other sheets. Use dropdowns for Item ID selection.
2. Internal Administrators: Update Current Stock, Expiry Dates, and Statuses on the Item Details sheet. Approve or reject requests in Usage Log via dropdowns.
3. Data Security: All non-client sheets (Item Details, Request Tracker) are protected. Password: [REDACTED] — distributed only to authorized staff.
4. Updates: Refresh the Dashboard by pressing F9 or clicking “Refresh Data” button on the Dashboards sheet.
5. Exporting: Use “File > Save As” to generate a PDF of Inventory Overview for email distribution. Do not share .xlsx files with untrusted parties.

EXAMPLE ROWS

Inventory Overview Example:
Item ID: R-2024-087 | Item Name: CRISPR-Cas9 Plasmid Kit v3.1 | Category: Reagents | Current Stock: 15 | Min Threshold: 5 | Last Updated: 2024-06-15 | Status: In Stock | Available for Client Use?: Yes

Usage Log Example:
Date Requested: 2024-06-20 | Client Name: Dr. Elena Rodriguez, Max Planck Institute | Item ID: R-2024-087 | Quantity Requested: 3 | Purpose of Use: Gene editing assay validation | Status: Pending

RECOMMENDED CHARTS & DASHBOARDS

The “Dashboards” sheet features interactive visualizations:

• Pie Chart: Inventory by Category — Shows proportion of Reagents, Biologicals, etc. Helps clients understand resource distribution.
• Bar Chart: Stock Status Overview — Compares “In Stock”, “Low”, and “Out of Stock” items visually.
• Gauge Chart: Average Inventory Health Score — Composite metric based on stock levels and expiry status (weighted formula).
• Table: Top 5 Most Requested Items — Ranked by request frequency in last 30 days to highlight popular research tools.
• Trend Line: Monthly Usage Volume — Shows historical request trends, useful for planning future inventory procurement.

This template transforms raw warehouse data into a client-ready interface that upholds research integrity, fosters trust through transparency, and ensures compliance with collaborative data-sharing standards. By integrating Research Management workflows with secure Warehouse Inventory tracking and an intuitive Client View, this Excel solution streamlines external collaboration without compromising internal control or operational security.

Note: Always protect sheets containing internal information. Regularly backup the template and test formulas after updates to maintain data integrity.