False declines and shipping friction: the two checkout killers merchants underestimate
Cart abandonment is one of the most studied problems in ecommerce, yet many merchants are still tackling only the visible part of the problem. Shipping cost is the obvious culprit: nearly half of consumers cite the absence of free shipping as meaningful friction, and that number is hard to ignore. But the more insidious conversion killer sits further down the funnel, invisible to most analytics dashboards: the false decline.
False declines occur when a technically valid transaction is rejected, whether due to incomplete data reaching the issuer, an unreliable payment connection, or overly aggressive fraud rules. The scale is significant. Estimates suggest merchants lost more than $50 billion in revenue in 2019 alone to declined transactions that should have gone through. Unlike a customer who abandons at the shipping screen, a customer who is declined at the payment step rarely retries. That purchase is gone, and so is a portion of that customer’s trust.
For Dutch and Belgian merchants, this is particularly relevant. The payments landscape here is fragmented: iDEAL, Bancontact, BNPL options like Klarna and in3, and card schemes all need to work reliably every time. A single weak link in the authorisation chain, whether a timeout, a missing 3DS data field, or an inconsistent redirect, translates directly into lost revenue. Merchants who focus only on checkout UX improvements while ignoring authorisation quality are optimising the wrong end of the funnel.
The article also raises a point worth internalising: BNPL and alternative payment methods should be surfaced early in the product journey, not buried in the checkout step. Pre-checkout visibility of payment options reduces the mental barrier to purchase before the customer even reaches the cart. This is a low-effort, high-impact change that most merchants have yet to implement consistently.
The practical takeaway is twofold. First, audit your authorisation rates by payment method and by device type. If you are not tracking decline reasons, you cannot fix them. Second, review where you surface payment options. If BNPL only appears at checkout, you are missing the persuasion window that exists at the product detail page.
Source: checkout.com
