The four flows worth building
| Flow | Trigger | What it must contain |
|---|---|---|
| Order and delivery | Order placed, shipped, out for delivery | Status, timing and a way to ask a question |
| Post-delivery check | A few days after delivery | One question about the product and an easy reply |
| Replenishment | Customer own consumption interval | A specific reorder path for what they bought |
| Win-back | Beyond their normal purchase interval | A genuine reason to return, not a discount first |
Why order updates matter for retention
They seem operational rather than strategic, and they do more for retention than most campaigns. A customer who receives clear updates has a better purchase experience, contacts support less, and forms an impression of a brand that is organised. They also open these messages, which keeps your number active and trusted in a way that promotional broadcasts do not.