Why do dropshipping stores selling grocery fail in the GCC?

Almost never the product. What kills them is a rising cost per customer meeting a margin that cannot absorb it — the store is profitable at one ad price and underwater at another, and nothing on the storefront changed.

What actually kills them

The second cause is delivery time. A customer who waits three weeks does not buy again and frequently does not stay quiet about it, so the acquisition cost has to be paid twice for the same person.

Dropshipping trades margin for not holding stock, and the trade only works while traffic is cheap. For a grocery or food store in the GCC, the answer turns on one thing in particular: Grocery margins are thin and baskets are large, so the whole model lives or dies on delivery cost per order.

What is different about the GCC

The GCC is not one market. Payment habits, delivery norms and language expectations differ enough that a single approach underperforms in at least one country.

Payment preference varies by country more than most planning assumes.

What is different about a grocery or food store

The part nobody plans for is returns: if the supplier will not take one back, the store is the returns department.

Where a mobile app comes into it

Weekly reordering is the behaviour, and an app that remembers the last basket removes most of the work.