Where should I keep leads from my ads: Excel, WhatsApp or a CRM?

The test of a lead system is whether you can answer three questions at the end of the month: how many leads came from each campaign, what happened to each one, and how many became customers. If the answer lives in someone's WhatsApp, a notebook at the front desk and a receptionist's memory, nobody can answer them, and nobody can tell whether the ads work.

A shared Google Sheet is the sensible starting point. Leads from Meta forms can flow into it automatically through an integration, and WhatsApp enquiries can be added by hand or through a simple form. Columns should include date, name, number, source campaign, what they asked about, area, who called, outcome and next step. The outcome column needs fixed options, such as not reached, not interested, follow up, booked and paid, so it can be counted.

Move to a CRM when the sheet starts to strain: several people calling, leads from many sources, follow-ups getting missed, or a need for reminders and history per customer. Many CRMs integrate with lead forms and WhatsApp Business. Choose the simplest one your team will actually use; an expensive system nobody updates is worse than a sheet everybody does.

Whatever the tool, protect the data. Limit access to the people who need it, do not share lead sheets in public groups, and remove ex-staff promptly. Lead data is personal information people gave you for one purpose. Treat it that way and it stays useful; treat it carelessly and it becomes a liability.