One gentle second message when the first reminder did not convert — and the rules that keep it from becoming nagging.
Some people mean to reorder and forget. A single follow-up recovers a meaningful share of them. Two follow-ups recover almost nothing extra and annoy everyone, which is why Repeatly sends exactly one.
It is deliberately short and low-pressure, in the customer's own language, with the same one-click reorder link. It does not repeat the whole original message and it does not add urgency that is not real.
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