Should a pet supplies store in Saudi Arabia dropship or hold stock?
Not a decision about the business — a decision about each product. Dropship the long tail you are still testing; hold the few lines that reorder, because those are the ones where margin compounds and where a slow delivery costs you a repeat customer rather than a first one.
How to decide, line by line
A practical rule: once a line sells consistently for two months, price out holding it. If the improvement in margin covers the storage inside one turn of stock, hold it.
Dropshipping trades margin for not holding stock, and the trade only works while traffic is cheap. For a pet supplies store in Saudi Arabia, the answer turns on one thing in particular: Pet food is the most reliably repeated purchase in retail: the bag runs out on a known schedule.
What is different about Saudi Arabia
Saudi Arabia is the largest ecommerce market in the region by some distance, and the most phone-dominated.
Cash on delivery remains common in Saudi Arabia, which changes the economics of every refused delivery.
What is different about a pet supplies 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
This is the clearest case for an app of any category. TicApp built barcode reordering into Pets Lounge for exactly this.