Why the mismatch exists
Ad platforms charge when a spend threshold is hit or a billing cycle closes, not when your accounting period ends. One invoice can span several periods and several campaigns.
What it costs in practice
A useful rule of thumb is fifteen minutes of manual matching per 1,000 euro of monthly ad spend, which grows fast for scaling stores.
Currency makes it worse
Spend billed in dollars adds FX differences that have to be booked separately, which is where most manual errors appear.
What actually fixes it
Card providers that pull ad invoices in automatically and attach them to the matching transactions remove nearly all of the manual step.
What to check before switching
Confirm which platforms are supported, whether VAT is handled correctly for your country, and when the provider last updated that capability.
Quantify the bonus
The scan calculates this as a separate bonus on top of cashback. The full report is a one-time 29 euro payment.