When to Replace a Spreadsheet With an Internal Tool
Spreadsheets are where most business processes begin, and many should stay there. The problem starts when a spreadsheet quietly becomes the system the business runs on, without any of the safeguards a system needs.
Signs the spreadsheet has become a risk
- Several versions exist, and nobody is certain which one is current.
- Only one person understands how it works, and the business stalls when they are away.
- Staff copy the same information into the spreadsheet, the CRM and the invoicing system.
- It holds personal or client data, and anyone with the file can see all of it.
- Mistakes are found late, after an invoice, rota or report has already gone out.
- You cannot tell who changed what, or when.
One or two of these is normal. Three or more usually means the time lost to workarounds costs more than a proper tool would.
The four options
| Option | Good when | Watch out for |
|---|---|---|
| Tidy the spreadsheet | The process is simple and one or two people use it | Still no audit trail or fine-grained permissions |
| Buy off-the-shelf software | The process is standard, such as CRM, rotas or job management | Paying for features you do not use, and bending your process to fit |
| Low-code tools | You need structure and forms but the logic is simple | Limits appear as the process grows, and ownership can become unclear |
| A custom internal tool | The process is specific to how you work and connects several systems | Needs a clear scope, documentation and someone responsible for it |
Options for replacing a business spreadsheet
Tidy the spreadsheet
- Good when
- The process is simple and one or two people use it
- Watch out for
- Still no audit trail or fine-grained permissions
Buy off-the-shelf software
- Good when
- The process is standard, such as CRM, rotas or job management
- Watch out for
- Paying for features you do not use, and bending your process to fit
Low-code tools
- Good when
- You need structure and forms but the logic is simple
- Watch out for
- Limits appear as the process grows, and ownership can become unclear
A custom internal tool
- Good when
- The process is specific to how you work and connects several systems
- Watch out for
- Needs a clear scope, documentation and someone responsible for it
Before you build anything, map the process
- Write down each step, who does it and what triggers it.
- List the information captured at each step and where it currently lives.
- Mark every point where someone retypes information from one place into another.
- Note what the process produces at the end: an invoice, a report, a schedule, a client update.
- Decide who needs to see what, and who must not.
This map is useful whatever you decide. It often shows that a smaller fix, such as connecting two existing systems, removes most of the work without a new tool.
What a custom tool typically costs
Robishto builds most internal tools and automations for between £2,000 and £25,000, usually over two to eight weeks. The range depends on the number of users, the systems connected and how much of the process is covered. You receive a fixed scope and price before work starts. See how pricing works.
Design it for the people who use it
A new tool only helps if staff prefer it to the old spreadsheet. Clear labels, sensible defaults and fewer steps matter more than extra features. Our guide to making business software easier for staff to use covers the design choices that reduce mistakes.
Common questions
Will we own the tool you build?
You receive the code and documentation at handover, written so another developer can maintain it if needed.
Can a custom tool connect to our accounting software?
Usually, yes, if the accounting software has an API. Most widely used UK accounting packages do.
