Your biggest customer and your best customer are rarely the same person

Name your biggest customer. Everybody can, instantly.

Now name your best one, and notice that the question is harder, because best means something different and nobody measures it.

What volume hides

The largest buyer is often the one on the thinnest margin, because he negotiated hardest and he knows how much you need him.

He is often the slowest to pay, because large customers take the credit they want rather than the credit you offered.

He usually takes the most service. More calls, more changes, more urgent requests, and all of that time is real even though it appears on no bill.

And he carries the most risk. A business where one party is thirty percent of turnover is not a strong business, however good that relationship feels today.

The four columns that change the picture

Next to each customer, put volume, margin, average days to pay, and a rough count of how much attention they take.

Almost every business that does this finds the same thing. There is a group of quiet medium customers who pay on time, argue about nothing, and are worth more per rupee than the large one everybody worries about.

Nobody has ever thought about getting more of them, because they are not demanding, and in most businesses attention goes to whoever is loudest.

What to do with it

Not fire anybody. Simply know who you want more of, and let that decide where your effort goes.

It changes which enquiries you chase hardest, which customers get the proactive call, and which kind of work you quote keenly for. Those are decisions you are already taking, every week, usually by instinct.

Put those four columns next to your top twenty customers. Is your biggest one still your best?

Putting those four columns together for the first time changes where a business spends its effort, and the data is usually already there. Ask us what your top twenty would look like.