It is the end of the quarter. You open the dashboard.
Revenue is up. Ad spend is up a little more. Margin is roughly where it was last quarter, so nothing looks broken.
You decide to push harder on the channel that appears to be working.
That decision is being made on numbers nobody has checked.
Because the payouts were booked as deposits, the fee rate on that channel has never once appeared in your accounts. The refund rate on your best-selling product is netted invisibly into the same line. The reserve the platform is holding is not on your balance sheet at all.
None of it is fraud. None of it is even unusual. It is what happens when someone competent at bookkeeping meets a settlement report they have never been trained to read.
Six months later the CPA asks for cleanup before filing. The cleanup turns up the fee rate. And the channel you doubled down on turns out to have been the worse of the two the entire time.
That is the six months you do not get back.
The diagnostic exists so this gets caught in forty-eight hours instead of at year end. It costs nothing, and if your books are clean we will tell you that and leave you alone.