By Ryan Richardson · Published 8 October 2026
One ad set, three days old. On the platform's default reporting view, it had spent A$120.70 for one attributed purchase worth A$7.10, a return of 0.06: six cents back for every dollar out.
A check against the bank, on money that had actually settled, found the same ad set had taken A$263.94 across seven sales against A$169.95 of lifetime spend. That's a return of 1.55: profitable, not worthless. The 0.06 had come from a reporting preset that excludes today, read on a set that was only three days old, so most of its real sales had not shown up in the platform's count yet. Even the platform's own lifetime figure for the same set, the version that does not exclude today, still read 0.38. Less wrong, still wrong.
Conversion reporting takes a day to three days to settle. A three-day-old ad set read on a window that excludes today will always understate its real performance, because most of the sales it's already produced haven't finished being counted. The number on the screen was fast. The number in the bank was slow. Nothing wrong happened; the two instruments were just measuring at different speeds, and only one of them was telling the truth about money that had actually moved.
Nothing gets killed or scaled on platform reporting alone, ever. Every kill decision checks settled cash first. Nothing dies before seventy-two hours, specifically because conversion reporting needs that long to settle, and a same-day or three-day kill is a decision made on data that hasn't finished arriving.
Before switching off any ad set reading badly on the platform's default view, check its age. If it's under seventy-two hours old, the number you're looking at is not finished yet. Pull the same ad set's lifetime return (the setting that doesn't exclude today) as a second check, and then check the actual bank settlement for the same spend, same window. If the platform number and the bank number disagree by a wide margin, trust the bank.
| Claim | Value | Source |
|---|---|---|
| Platform-reported spend on the ad set | A$120.70 | THE BOOK FULL.md, The ad set I almost switched off, line 64 |
| Platform-reported revenue (one purchase) | A$7.10 | THE BOOK FULL.md, The ad set I almost switched off, line 64 |
| Platform-reported return | 0.06 | THE BOOK FULL.md, The ad set I almost switched off, line 64 |
| Settled spend on the same ad set | A$169.95 | THE BOOK FULL.md, The ad set I almost switched off, line 66 |
| Settled revenue, seven sales | A$263.94 | THE BOOK FULL.md, The ad set I almost switched off, line 66 |
| Settled return | 1.55 | THE BOOK FULL.md, The ad set I almost switched off, line 66 |
| Platform's own lifetime return for the same set (not excluding today) | 0.38 | THE BOOK FULL.md, The ad set I almost switched off, line 68 |