Western Governors University

C720: Operations and Supply Chain Management

A study guide to WGU's C720, the undergraduate introduction to how organizations produce goods and services and manage their supply chains.

Updated October 2026 · 5 min read

C720 Operations and Supply Chain Management is Western Governors University's streamlined introduction to how organizations produce goods and services efficiently, choose supply chain strategies and measure performance.

WGU's B.S. Accounting program guide lists it at three competency units in the ninth term, and it appears across other WGU business degrees. The guide stresses topics every manager needs, whatever their discipline: supply chain management, product development and capacity planning.

The challenge is breadth. The course moves from forecasting to quality to location decisions, and students need both the calculations and the business reasoning behind them.

Course at a Glance

ItemDetails
UniversityWestern Governors University (WGU)
Course codeC720
LevelUndergraduate, competency-based
Competency units3 (B.S. Accounting guide)
Subject areaOperations and supply chain management
Typical workApplied questions, calculations, process and supply chain analysis

What C720 Covers

The guide lists topics including forecasting, product and service design, process design and location analysis, capacity planning, quality management, inventory, scheduling, supply chain management and performance measurement. Its six competencies group these as follows:

Competency (summarized)In practice
Quality management for continuous improvementTQM, Six Sigma, control charts
Process design, capacity and location decisionsChoosing layouts, sizing capacity, siting facilities
Forecasting, measurement and schedulingMoving averages, error measures, sequencing
Just-in-time, Toyota Production System and leanWaste reduction, pull systems, flow
Supply chain for competitive advantageSourcing, logistics, supplier relationships
Operations and inventory management for goalsLinking efficiency to strategy

Key Concepts Explained

Forecasting

A simple moving average smooths demand by averaging recent periods. Forecast error is then measured, often with mean absolute deviation (MAD), so methods can be compared.

Example: Sales for the last three months were 220, 240 and 260 units. A three-month moving average forecasts (220 + 240 + 260) / 3 = 240 units next month. If actual sales turn out to be 270, the error for that month is 30 units, a sign that a trend-following method may suit this product better.

Reorder Point and Safety Stock

A reorder point tells you when to order so stock does not run out during the supplier's lead time.

Example: Daily demand is 40 units, lead time is 5 days and the firm keeps 60 units of safety stock. Reorder point = (40 x 5) + 60 = 260 units.

Lean Thinking

Lean, rooted in the Toyota Production System, removes waste such as overproduction, waiting, excess inventory and unnecessary movement. Just-in-time delivers materials as they are needed, which cuts holding costs but makes the operation more sensitive to supplier disruptions.

Typical Assignments and How to Approach Them

WGU assesses competency through performance assessments or objective assessments; check your course page for the current format. Work in this subject typically includes:

Task typeWhat it testsHow to approach it
Forecasting problemsMethod choice and errorShow every step and compare methods
Process or capacity analysisBottlenecks and designFind the slowest step first
Supply chain caseStrategy and riskLink choices to cost, speed and resilience
Quality improvement questionContinuous improvement toolsName the tool and apply it to the data

Quality Tools Worth Knowing

Quality management appears in both the course description and the first competency, so it is worth knowing a small set of tools well. Each answers a different question:

ToolQuestion it answers
Pareto chartWhich few causes create most problems?
Cause-and-effect (fishbone) diagramWhat might be causing this defect?
Control chartIs the process stable or drifting?
PDCA cycleHow do we test and lock in an improvement?

Strong answers pick the tool that fits the problem, apply it to the data given and end with an action. For services, remember that quality includes the customer's experience, such as waiting time and courtesy, not only defects.

Where Students Get Stuck

Study Tips for C720

How We Help with C720

Send the task, rubric, any data and evaluator feedback. An operations tutor prepares custom worked solutions, explains forecasting and inventory methods step by step, or reviews your analysis for errors and gaps. For case-based tasks, see our case study writing guide.

GradeEssays is independent of Western Governors University. Our work is tutoring and reference material: use it to learn the methods, then complete and submit your own work under WGU's academic integrity rules. We never log in to student portals. Every order is written from scratch, with free revisions within the scope of your original request.

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Frequently Asked Questions

How many competency units is C720?

WGU's B.S. Accounting program guide lists Operations and Supply Chain Management at three competency units.

Is C720 mostly maths?

It mixes both. Forecasting, inventory and capacity involve calculations, while supply chain strategy and quality management involve explanation and judgment.

What is the difference between lean and just-in-time?

Lean is a broad philosophy of removing waste. Just-in-time is one lean practice: supplying materials only as they are needed.

Which formulas should I know for C720?

Moving averages, forecast error measures, reorder point, economic order quantity and capacity utilization are good starting points.

Does C720 cover global supply chains?

Yes. The course description refers to creating value along the supply chain in a global environment.

Is GradeEssays affiliated with WGU?

No. We are an independent tutoring and writing service, not connected with Western Governors University.