Supplier Lead Times You Should Write on the Wall

Supplier lead time is the gap between "we need more" and "it is on the shelf". In a Malaysian SME that gap hides inside WhatsApp voice notes. Someone says the cups are on the way. Someone else promises flour after the public holiday. The shop runs out on Friday anyway, and the person at the counter apologises for a bestseller you thought was handled. Write the real number of days on the wall, where ordering happens, and reorder before the shelf looks dramatic.

Lead time is not the supplier's slogan. It is how long it took last time, including the day they did not answer, the day the lorry skipped your area, and the day you were closed when they tried to deliver. If you have not measured it, start now. Each time you order, write the date you asked and the date the goods were usable. Usable means unpacked and on the shelf, not sitting in a box by the back door.

Put days, not moods, where you order

Make a short list of the items that stop the shop if they run out. Cups, a key ingredient, a bestselling size, the card rolls, the gloves. Next to each, write the supplier name, the usual lead time in days, the minimum they will send, and the point at which you reorder. "When it looks low" is not a point. "When two sleeves of cups are left" is a point. Tape the list at eye level near the store or the phone. A list in a folder will not be opened during service.

Separate local suppliers from those who ship from another state. A bakery supplier in the same town may be two days. A packaging seller sending from the Klang Valley may be a week, and longer if a holiday sits in the middle. Write both numbers if both are true. If a supplier is fast only when you call a specific salesperson, write the name. The wall is allowed to be practical. It does not need to be pretty enough for customers.

Reorder points that survive a busy week

Count how fast you use the critical item in a normal week and in a festival week. You do not need a formula on a spreadsheet. You need to see that you use about a case of cups between Monday and Thursday, so ordering when one case is left is already late if lead time is five days. Set the reorder point higher for the weeks you know are heavy: school holidays, the run-up to Raya or Chinese New Year, and any week you have a pre-order cap that depends on the ingredient.

• Item name and the supplier who actually delivers it.
• Lead time in days, based on recent orders.
• Minimum order, so you do not ask for a quantity they will refuse.
• Reorder point in units you can see, such as boxes or bottles.
• A backup supplier, even if they cost more.
• The day of the week you place orders.
• Who to message when the usual contact is away.

Cups: four days, reorder at two sleeves. If Ali does not reply by noon, message the backup before we close.

Pick one order day for routine stock so lead time has a clock. If you order every day in a panic, you will not notice that a supplier has slowed down. On the order day, walk the list. Do not trust memory. Send the order in writing, even if you also call. A written order has quantities. A call has goodwill and misunderstandings.

When the lead time changes, change the wall

Suppliers get slower before they announce it. If two deliveries in a row arrive late, update the number. Tell the person who sells and the person who answers WhatsApp, because they are the ones who promise customers a restock day. Do not promise "tomorrow" because it was true in March. Say "we reorder on Tuesdays and it usually takes four days" if that is the current fact. Customers can handle a date. They cannot handle three different dates from three staff.

Keep a backup for the few items that would close you. The backup may be a supermarket, a neighbour business, or a second wholesaler at a worse price. Write the backup on the wall too. Using it should feel like the plan, not like a personal failure. Pay the normal supplier on the terms you agreed so you stay a customer they will prioritise when stock is tight. A lead time you like and a bill you delay will not stay friends.

Do not hide the constraint from the menu

If an item takes ten days to restock, do not feature it as a same-day promise on your catalogue. Mark it made-to-order, or pause it when you hit the reorder point and you know the gap is coming. Running out by surprise is what makes staff offer awkward substitutes. A planned pause is cleaner. Put the expected date only if you believe it. Otherwise say you will message when it is back.

Review the wall once a month

Once a month, cross out any number that no longer matches reality. Ask whoever unpacked the last delivery whether the wall is a joke. If they laugh, fix the line with them. Lead times are not an insult to your supplier. They are how a small shop stops hoping. A handwritten list you trust will prevent more empty shelves than a new ordering app you do not open. The wall is humble. It is also where the promise to a customer either becomes true or stops being made.