Excel is enough while one person handles enquiries and there are few of them. You need a CRM system once several salespeople handle enquiries, once you no longer know who last called a contact, and once you want to know which source brings deals rather than just contacts.
A spreadsheet is not a bad choice. To start with, it is quick, familiar and already paid for. The problem starts when a whole sales process is built on it.
What is the difference between Excel and a CRM system?
| Area | Excel | CRM system |
|---|---|---|
| Contact ownership | A column with a name that nobody checks | Every contact has an owner; the system assigns and tracks it |
| Reminders | A manual calendar or memory | A task with a date on every contact |
| Several salespeople | Simultaneous editing is possible, but changes overwrite each other or get lost | Everyone works in the same register; the change history is recorded |
| Enquiry sources | A manually filled column, often empty | The source is recorded on entry, for example from a form |
| Reporting | Manual tables and formulas | An overview of the pipeline, statuses and sources without copying data |
| Price | You usually already have a licence | Licence, implementation and support, depending on the provider |
A spreadsheet can be extended with scripts, reminders and integrations with other tools. So we are not claiming Excel technically cannot do something. The question is who maintains all of it and what happens when the team grows or that person leaves.
When do you need a CRM system? The signs
If you recognise three or more, a spreadsheet is probably no longer enough:
- More than one salesperson handles enquiries.
- You don't know who last called a contact, or whether anyone called them at all.
- Quotes get lost between emails, messages and spreadsheet tabs.
- Data gets lost when a tab, a file or an employee changes.
- The head of sales asks for a report and gets the answer "I think it's going well".
- You don't know which source (Google, Meta, referrals) brings contacts who become customers.
- Not every contact has a date for the next step.
- Every salesperson keeps their own version of the spreadsheet.
What did the switch look like at Naitors?
Naitors makes PVC windows and doors. A team of five salespeople handled enquiries in Excel. Responsibility for following up contacts was unclear, and nobody knew exactly who had last called a given contact. When the managing director asked for a report, the answer was usually: "I think it's going well."
We set up a CRM system with automatic entry and a central register. Now every enquiry has an owner, and the system makes sure every follow-up happens. The managing director sees statuses, the pipeline and conversions.
The numbers: in one month (April/May 2026) Google Search brought 56 enquiries and Meta 11. By October 2026 the monthly volume had risen to almost 100 enquiries. It is important to keep this distinction clear: the CRM did not increase the number of enquiries; those come from advertising. What it did was allow the team to handle them and let management see what happens to them. The full example is in the Naitors case study.
How do you move from Excel to a CRM system?
- Describe the sales process: where contacts come from, which statuses follow and who decides on the next step.
- Clean up the data: remove duplicates, reconcile records and decide which spreadsheet is the right one.
- Assign an owner to every contact before you import it.
- Import the data into the CRM and check that the statuses match the process.
- Keep Excel only as an archive, not as a second register, or you will again have two versions of the truth.
Most of the work is reviewing the process and cleaning up data, not setting up the software itself. What this looks like with us is described on the CRM implementation page. For quotes that go unanswered, the article What to do when a client doesn't reply to your quote sets out the process, with message templates.
Where should you start?
A CRM system does not fix a bad process, but it makes it visible. If you would like us to review together how you handle enquiries and quotes today, read how we generate enquiries and connect them to sales, or get in touch.