Treat JPO as the main outlet-shopping stop
Johor Premium Outlets is different from a quick central-JB mall run. A useful plan gives enough shopping time, keeps the drop-off and return pickup clear, and checks how many bags the group may bring back.
Send pickup, return and bag details early
The WhatsApp quote is clearer when you include Singapore pickup, date, pickup time, one-way or return, return pickup time, passenger count, children, elderly passengers, luggage and expected shopping bags.
Do not rely on guaranteed timing
Checkpoint, weekend and holiday traffic can change the day. Use a buffer, especially if you are planning dinner, an extra stop or a strict return pickup after shopping.