The classic way to go broke while profitable

The classic way to go broke while profitable
Growth kills more affiliate businesses than losses do, and the mechanism is boring. Spending happens now, revenue arrives later, and the gap widens exactly when things are going well.
The sequence: results are good, so you scale. The scaled spend clears immediately. The matching revenue arrives after the period closes plus terms. Meanwhile you scale again on the strength of reported profit. Now you owe suppliers for volume you have not been paid for, and one partner delaying a payment breaks the chain.
Defences:
— Model the worst-case cash gap, not the average one.
— Cap total outstanding across all partners at an amount you could survive losing.
— Scale in steps that let one full payment cycle complete before the next increase.
— Keep a reserve you refuse to deploy into campaigns. It is not idle money. It is what lets you keep operating when a payment slips.
Every scale-up is a bet that everyone pays on time.