How does an ERP system work in a company?
An ERP is essentially the control center for your business: all relevant data is consolidated in one system and available to all authorized users in an up-to-date and consistent manner.
Instead of opening multiple tools at the same time or searching through folders, you sit in the cockpit and see at a glance where your company is currently flying.
- Orders automatically update inventory levels.
- Invoices access existing data.
- Accounting works with the same figures as sales and purchasing.
Modules and functions of an ERP system
A modern ERP consists of individual modules that you can use as needed:
- Finance & Accounting
Receipts, invoices, payment runs, open item lists, evaluations - Purchasing
Suppliers, order proposals, orders, goods receipts - Sales
Quotes, orders, delivery notes, invoices, customer management - Warehouse & Logistics
Inventory, storage locations, stocktaking, tracking - Copilot
AI-powered assistant with Microsoft 365 Copilot and Copilot in Microsoft Dynamics 365 Business Central - Integration
Easy connection to new tools through seamless integration with Microsoft, third-party apps, DATEV, and others. - Projects / Service / Production (optional)
Project billing, service orders, production processes—relevant depending on the industry.
The big advantage of an ERP system: All modules access the same database.
Do I really need an ERP system?
As your company grows, an ERP system quickly becomes a sensible investment.
As soon as Excel takes up more time than it saves.
As soon as offers are left unanswered.
As soon as figures are based on gut feeling rather than facts.
The time you need to keep track of things could be spent on growth instead.
An ERP system brings order. You stay in control and create a stable basis for your KPIs.
Overview of the advantages of an ERP system and its limitations
Advantages
| Advantage | Benefits in everyday use |
| Centralized data | No duplicate entries, no conflicting figures |
| Faster decisions | Real-time overview instead of searching for data |
| Automated processes | Less manual work, fewer errors |
| Scalability | Grows with your company |
| Transparency | Clear workflows and traceable processes |
Limitations
| Limitation | Classification |
| Implementation effort | The structure must be set up correctly once. You must have the necessary data at hand. |
| Process discipline | An ERP system only works as well as it’s used. |
Excel or ERP?
Excel is a good starting point and perfectly adequate for many tasks. But when processes become more complex, Excel reaches its limits. Here are some of the reasons why an ERP system offers advantages over Excel:
| Criterion | Excel | ERP system |
| Data consistency | Prone to errors | Centralized & clear |
| Multi-user | Limited | Made for teams |
| Automation | Manual | Automatically linked |
| Scaling | Limited | Scalable |
| Transparency | Dependent on maintenance | Real-time overview |
Excel is like riding a bike with luggage. ERP is like a car with GPS. With ERP, you drive faster, safer, and arrive more relaxed.
And yes: you can love your Excel—and still upgrade.
Cloud ERP (SaaS) vs. On-Premise
You don't just have ideas when you're sitting in the office? Do you also need to add something when you're stuck in traffic or maybe even lying on the beach? These are reasons to use a cloud-based ERP system. It means growth anytime, anywhere.
| Criterion | Cloud (SaaS) | On-premise |
| Operation | Managed by provider | Own IT required |
| Updates | Automatic | Manual |
| Cost model | Monthly (OpEx) | One-time + operation (CapEx) |
| Scaling | Flexible | Complex |
| Access | Available everywhere | Mostly local |
For small businesses, cloud ERP is almost always the more pragmatic choice today.
Security & data protection
Is it secure? Yes! Modern cloud ERP systems meet all security standards:
- GDPR-compliant data processing
- Hosting in certified data centres
- Regular updates and security checks
- Role and rights concepts
This often makes your company data more secure than on local servers.
Sounds complicated. Isn't ERP huge and expensive?
That used to be the case. Today, everything is much simpler. (Yes, everything used to be worse.)
With BC2GO from COSMO365, you get an ERP system that is ready to use immediately and does not require months of project work. The packages and prices are clearly defined and transparent, and the system can be used right from the start. You can also find details on the setup here.
That's because BC2GO is an ERP system that has been specially developed for small businesses and start-ups—in other words, for anyone who wants to take control of their own digitalization. It is based on Microsoft Business Central, but comes preconfigured and ready to use. You don't have to gather anything together or make any complicated settings.
Clear packages. Transparent prices. No technical jargon.
You set the pace. We provide the tools. You decide what to do with them.
Conclusion.
An ERP is for anyone who wants to actively manage their business. For anyone who says:
“I want to sell more.”
“I want better numbers.”
“I want less chaos.”
And above all: “I want to be in control.”
An ERP is for founders who want to work cleanly from the start and for small businesses that need more overview without getting lost in technology.
ERP is not a complex monster, but a tool for greater clarity and control.
With BC2GO, you can get started easily, maintain an overview, and create a stable foundation for sustainable growth.
Digitization made easy.
FAQ – Frequently asked questions about ERP systems
What is the difference between ERP and accounting software?
An ERP covers much more than accounting—it connects all areas of business.
How long does it take to implement an ERP system?
Depending on the solution, it can take anywhere from a few days to several months. Preconfigured solutions such as BC2GO are ready to go much faster.
Do I need an ERP as a start-up?
Not necessarily, but structures implemented early on save time and money later on.
Can I switch from Excel to an ERP?
Yes. Many systems offer import and migration options.
Is an ERP also suitable for small teams?
Yes—modern cloud ERPs are made for just that.
