The number that isn't in your system
It isn't there. That is the whole difficulty. Your systems record what a partner bought from you, with perfect fidelity and no context at all. The share that matters is the ratio between that and everything they bought, and the denominator was never yours to see.
What you do have are strong shadows of it. A partner who buys storage from you and nothing else, in a portfolio where comparable partners buy storage and networking together, is telling you where the rest of their business goes. A line that disappears from a basket with no matching drop in the partner's overall activity has not been cancelled. It has been moved.
Why nobody will quote you an honest one
Because the honest answer is that it has to be inferred, and most channel software would rather show you a confident number than an inferred one. So the question stops being asked, and account planning proceeds on the assumption that your revenue is the whole of the relationship.
This is the most valuable of the five signals and the easiest to fake. Any tool can print a wallet-share figure. Very few can tell you what it was derived from — and a number you cannot interrogate is not intelligence, it is decoration.
How Wallet Map estimates it, and shows its work
Position is estimated from portfolio shape, peer comparison, and movement over time — and the reasoning sits beside the estimate, every time. You can see which partners yours was compared against, and which behaviour moved the number.
Where the data cannot support an estimate it renders a gap and says so. This is the signal most vulnerable to confident nonsense, so it is the one held to the strictest account: an estimate you can argue with, or nothing at all.
The uncomfortable part
An estimate is an estimate. We will show you how each one was reached and where it is weak, and we would rather hand you a gap than a number that reads well and falls apart the moment your sales team asks where it came from.