An abandoned shopping cart is not a sentence.
It does not say I changed my mind.
It does not say please remind me later.
It does not say my card was in the other room, I found a better price, my kid started screaming, or I was only checking shipping.
It says only that a checkout started and did not finish.
Marketing automation has turned that ambiguity into a very profitable trigger.
Klaviyo’s current abandoned-cart documentation defines the flow as a message or sequence sent after someone adds an item to a cart but does not complete the purchase. Its default guidance suggests a first reminder after roughly 2–4 hours and a second 20–48 hours later, with multiple messages and channels available. See Klaviyo’s abandoned-cart flow guide.
That is ordinary ecommerce practice.
It also shows how one unfinished action can automatically generate several new contacts.
A reminder can genuinely help
Abandoned-cart email is not inherently abusive.
A shopper may appreciate a message containing the exact items, a saved cart, shipping information, or a direct way to finish checkout on another device.
The usefulness depends heavily on context.
One reminder after a genuine checkout attempt feels very different from three emails, two text messages, a push notification, and an advertisement that follows the shopper around the web.
Klaviyo’s own documentation warns merchants to disable duplicate default cart messages when using its flows so customers do not receive overlapping reminders from multiple systems.
That is a revealing problem.
Automation can multiply contact accidentally even when every individual system believes it is doing something helpful.
Nonpurchase is not clear consent for pursuit
The deeper issue is inference.
A merchant knows that the customer showed some interest. It does not know why the purchase stopped or how much follow-up that person wants.
The safest systems therefore use stopping conditions: the flow ends when the purchase completes, contact frequency stays limited, and promotional channels such as SMS or push are used only when the user has separately agreed to receive them.
Klaviyo’s push-notification guidance, for example, notes that only app users who consented to notifications can receive abandoned-cart push messages. See its push-flow documentation.
Spam Empires thrive on converting tiny signals into reasons to send another message.
An abandoned cart is a signal.
It is not a confession of undying interest.