How supply orders cross from Service into Stock
Ordering toner for a customer's machine is one action to the person doing it and two records in BMS, split across two modules. Knowing where the seam is explains most questions about where a supply order has got to.
The two halves
In Service, the order is raised against the asset. That is deliberate: consumables belong to a machine, not to a customer. A customer with forty devices does not need "toner" — one particular device needs one particular cartridge, and the asset is the only place that is known.
In Stock, the same order appears as a sales order with Source Supply Order. From that point it is fulfilled like any other order: allocated, picked, packed, dispatched.
Why it is a sales order at all
Because everything downstream of "we have promised goods" is the same work. A supply order and an ordinary sale both need stock reserved, someone to pick them, a box, a carrier and a delivery. Modelling supply orders as their own parallel pipeline would have duplicated all of it, and the two pipelines would have drifted.
Keeping the Source field is what preserves the difference that still matters: supply orders are worked as a queue by different people, on different timescales, from different triggers, than general sales. Filtering by Source is how you get that queue back.
What the seam means in practice
The asset keeps the history. An asset's Orders tab is the record of what that machine has been sent, and it is the right place to check before ordering again. Stock's list is the record of what is being fulfilled now.
Fleet data can raise orders. Where a fleet-management integration is connected, low-toner reports raise supply orders automatically, stamped in Extra Information with the system, the date and the device. Two consecutive days of low readings can produce two orders for one machine — the integration reports a condition, it does not decide whether to ship.
An order raised by hand looks the same, minus the stamp. A blank Extra Information means a person raised it.