How does an electronics store in the UAE get repeat customers?

By reaching the customer at the moment the first purchase runs out, through a channel that does not charge per message. Almost every store has the timing data and spends the reach budget anyway.

The mechanics of a second order

Work out the median gap between first and second order. Whatever that number is, the reminder belongs slightly before it — after it, the customer has already solved the problem somewhere else.

Winning a customer costs money and selling to them again costs almost nothing, and most budgets are spent as though the reverse were true. For an electronics store in the UAE, the answer turns on one thing in particular: Electronics are compared before they are bought, and the comparison happens on somebody else’s site. Price is visible and margin is thin.

What is different about the UAE

Delivery expectations in the UAE are set by same-day services, so five-day shipping reads as slow whatever the price.

Card payment is the norm in the UAE, with cash on delivery still expected by a meaningful minority.

What is different about an electronics store

Discounting to grow trains people to wait for the discount. It works once.

Where a mobile app comes into it

Electronics buy rarely, so an app has less to do here unless accessories and consumables are a real part of the business.