At the recent IBF S&OP and IBP Global Conference, it was clear that many companies still use spreadsheets. They use these tools for supply chain planning and production scheduling.
A quiet truth many admitted with frustration. Spreadsheets are familiar, but they’re also outdated, fragile, and holding businesses back. As one attendee put it, “Everyone can explain how complex their Excel system is, and how terrible it is at the same time.”
Yes, Excel technically “gets the job done.” In today’s fast and complex manufacturing and supply chain world, it’s like using your shoe to hammer a nail. You might get a result, but not without damaging the tools and exhausting the user.
So why are companies still relying on the wrong tools?
Why Are We Still Using the Wrong Tools?
It’s not about capability—it’s about comfort. Spreadsheets feel flexible, low-cost, and familiar. But that comfort comes at a steep operational price.
As Forbes contributor Steve Banker points out, “Supply chain planning is too complex for spreadsheets. Planners may be good at building Excel macros, but that’s not the same as running a synchronized planning process across sites, suppliers, and markets.”
People use spreadsheets for a few common reasons. They are familiar, easy to access, and do not need IT approval. But these perceived conveniences hide major business risks:
- The person who created the scheduling and planning spreadsheets often understands them alone. This creates a risk when staff are not available.
- Excel-based planning relies on tribal knowledge, making it hard to train backups or onboard new team members
- Planners waste hours manually manipulating data instead of focusing on proactive decision-making
As your business grows in complexity (multi-site operations, multi-tier suppliers, multiple product attributes), Excel falls further behind.
What’s the Real Cost of Staying the Same?
Using spreadsheets for demand planning, supply balancing, and production scheduling introduces risks that grow over time:
1. Slow, Manual Workflows
McKinsey says that companies with old planning processes waste too much time on manual data work. This leaves them with little time for making strategic decisions or modeling different scenarios.
2. Limited Visibility and Collaboration
Spreadsheets are siloed by nature. When demand, supply, finance, and production teams each manage their own files, it is hard to align plans or respond to changes. As McKinsey notes, fragmented IT landscapes lead to data latency and poor coordination between business functions.
3. Reactive Instead of Resilient
In today’s volatile environment, supply chain planning must be dynamic and proactive. But spreadsheets don’t support real-time data, alerts, or simulations. That means planners often find themselves reacting after the fact rather than preventing disruption.
4. Poor Fit for Finance and Supply Chain Integration
Building integrated planning models across supply chain and finance teams is extremely difficult in Excel. Forbes suggests using special tools that provide clear visibility, real-time forecasts, and what-if evaluations. These tools help connect operational and financial planning.
Real-World Consequences of Spreadsheet Dependency
Two recent case studies from Scheduling Processes, Systems, and Software illustrates this well:
At a large-scale pet food company, planners spent all day making a schedule in Excel. However, their plans often caused delays. Either upstream production had to stop because of full bins, or downstream packing lines sat idle because of starvation. Once they adopted specialized scheduling software, they completed the schedule by 11 a.m., and planner effort dropped by 30%.
A detergent maker improved production efficiency by 5% just by using a special scheduling tool instead of Excel.
These may seem like small wins. But a 5% gain in efficiency can mean millions in output value each year.
Spreadsheets Are Not Built for Scheduling
According to industry research and practitioner experience, Excel fails in several critical areas for modern planning:
Stop Settling. Start Planning Better.
It’s not just about eliminating errors. Giving your teams the right tools allows them to do their jobs more effectively, efficiently and confidently.
If you’re still planning in Excel, it’s time to ask yourself:
- What is it costing us in lost productivity?
- What is Excel truly costing us in lost time and missed opportunities?
- How often are we firefighting because of preventable gaps?
- How many firefighting hours could we eliminate with the right tools?
- How much could we gain by replacing our spreadsheets with real-time, intelligent tools?
- What would 5% more efficiency mean to our bottom line?
Time to Upgrade the Toolbox
Planners juggling complex Excel models, custom macros, and reactive adjustments deserve better. They need tools that:
- Automatically align supply, demand and capacity
- Account for constraints and changeovers dynamically
- Enable real-time, cross-functional collaboration
- Support scenario modeling and financial integration
- Scale with operational complexity
QAD Digital Supply Chain Planning and QAD Advanced Scheduling promise a better future for manufacturing. They are an integrated solution for Advanced Planning and Scheduling.
Don’t Let Spreadsheets Limit Your Growth – Let’s Build a Smarter Planning Operation
Say goodbye to bruised fingers and broken formulas.
Let’s discuss how QAD can help you plan smarter, schedule better, and move faster. Book Your Demo Now.
