Smart Warehouse Management (WMS)

Yes. The warehouse sees the production schedule and feeds lines just-in-time, while consumption is booked back automatically.

Standard barcode scanners and label printers are enough; RFID is optional for high-volume flows.

Yes, including transfers between sites and consignment stock at customers or suppliers.

If material sits in fixed places, moves rarely and is counted once a year, the ERP is enough. What makes a WMS necessary is lot or expiry rules, several locations holding the same item, or people walking the aisles to find material; that last one usually decides it. The ERP knows quantity by item and plant, while the WMS knows which pallet is in which location and who moved it.

Yes. Receiving, put-away, picking, cycle counting and lot traceability run entirely on scans and never touch a controller. What you lose is the consumption engine, which backflushes components from the BOM each time the PLC reports a good count instead of waiting for order confirmation. That narrows the window in which stock is stale, it does not make stock true, because scrap, over-issue and material variance still need their own posting.

A location scheme that matches the physical warehouse, an item master with real units of measure and pack sizes, and a counted opening stock by location. The location scheme is the one plants underestimate: aisles, racks, levels and floor areas all need labels a person can scan from where they stand. Expect to relabel, and expect the first counts to disagree with the ERP. That gap was already there; the WMS only makes it visible.

Enough to matter: a confirmation is added at five points, receipt, put-away, pick, line feed and finished-goods drop, and in return the searching stops, which is normally the larger number. The trade only works if each confirmation is short. Time the steps yourself during a busy hour with the people who will perform them. A demo will not tell you. If a pick confirmation takes four presses on a handheld, it gets batched at the end of the shift and the record stops being live.

Yes, wherever coverage actually reaches, but a dropout costs you the scan and the operator repeats it once the handheld is back on the network. Cold stores, high racking and metal-clad bays are exactly where a survey done in an empty building fails, and a persistently dead aisle means scans get entered later from memory, which defeats the purpose. Survey at rack height with the racks full before you order the hardware.

It allocates by FIFO or FEFO rule and then matches a location, and the rule can be constrained by location type, so a deep block-stack location can be set to release in the order it was filled, or excluded from automatic FIFO proposals. The software cannot see which pallet is physically blocked, which is why an override has to be allowed and recorded with a reason against the lot. If those overrides are frequent, the fix is the racking or the put-away rule, and the log tells you which.

Not the WMS. It owns location, movement and lot identity, the MES owns what happened at the operation, and the item master, bill of materials and unit of measure almost always stay in the ERP with the WMS receiving them. Agree that boundary field by field, in writing, before the interface is built: which system may create an item, and which may only read it, is the question that decides the project.