Inventory Replenishment Software

Inventory replenishment is the process of restocking products before they run out, deciding what to reorder, when to order it and how much to buy. Good replenishment balances two risks: running out of products customers want, and tying up cash in stock that sits on the shelf. For ecommerce brands it usually comes down to sales pace, current stock, stock already on order and how long suppliers take to deliver.

Reorder when your stock is expected to fall below your safety level before a new delivery could arrive. That moment depends on how fast the product sells, how much you have and have on order, and your supplier's lead time. Northmast calculates this for every product and location and tells you whether to order now or by a specific date.

Enough to cover expected sales until your next delivery, plus a safety buffer, adjusted to what your supplier accepts. A common approach is to choose how many days of stock you want on hand after each delivery. Northmast tops stock up to that level, then applies the supplier's minimum order quantity and order multiples.

The longer a supplier takes to deliver, the earlier you need to order, because you're still selling while you wait. A product with a six-week lead time needs ordering far sooner than one that arrives in three days. Northmast uses the lead time for each supplier, or for a specific product, so every recommendation reflects how long that delivery really takes.

Stock on its way should reduce what you order now; otherwise you risk ordering twice. The key is knowing when it will arrive, because a delivery due next week counts very differently from one due in two months. Northmast includes open purchase orders on their expected delivery dates in every recommendation.

Look for software that bases its suggestions on your real data rather than fixed reorder points: actual sales pace, current stock per location, purchase orders already on their way and each supplier's lead time. It should respect how your suppliers sell, with minimum order quantities and order multiples, and show how each suggestion was reached. Finally, check how easily a recommendation becomes a purchase order. Northmast brings these together in one app, from the reorder decision to the purchase order.

Yes. Northmast is a Shopify app that adds replenishment planning to your store: it uses your Shopify sales and stock per location to recommend what to reorder, when and how much, and combines those recommendations with purchase orders, supplier terms and profit reporting. The decision to reorder and the order itself sit in the same place, inside your Shopify admin.