Requirements raised from a bill of materials, netting what is already on order, and non-conformance recorded at receipt against the batch. No work orders, no routings, no capacity, no WIP — Atlas is source-to-pay, and a second, worse MRP living inside a buying tool would help nobody.
A plant's purchasing is most of what a plant needs from a procurement system. These are the parts a general one leaves to a spreadsheet beside it.
Atlas could already refuse a production run it could not cover and name each shortfall. What a buyer needs is that answer before the run — a shortfall list they can act on. And it has to net what replenishment has already ordered, or it tells them to buy a shortfall that is on its way.
Subtracting stock counted in each from a requirement stated in cases prints a figure that looks right and is not. Atlas converts the requirement into the unit the ledger counts in and subtracts there — and where no factor has been declared it returns nothing at all, which is neither zero nor covered: nobody computed it.
Non-conformance records what a person decided, who they were and when. It moves no stock: quarantining or returning goods is a movement somebody makes with their name on it. A pack that quietly adjusted a balance would be doing the one thing the inventory ledger is careful never to do.
The bill of materials is already in Atlas. Requirements takes it, multiplies it by the run, nets off what is on hand and what is already on order, and gives you the shortfall as something you can act on.
Material that did not conform is recorded where it arrived: the quantity, the batch, the reason, and what was decided about it — reject and return, quarantine pending decision, accept under concession, rework at the supplier, scrap.
Work orders, routings, work centres, capacity, WIP and shop-floor scrap and rework tracking are not in Atlas and this pack does not add them. That boundary is not a note in a document either: the pack's own test suite reads the module's code and fails the build if a work-order, routing, work-centre, capacity, WIP or scrap-quantity field or table appears in it, because the cheapest way for a boundary to erode is one helpful addition at a time.
Atlas refuses a lot here, on purpose, and every refusal carries its reason on the screen. These are the ones this industry meets, in the words the screen actually uses — so that meeting one is a thirty-second fix rather than a support call.
Every one of these is also written into the guidance drawer on the screen it happens on, and into the process guides your own workspace generates — so a person who meets it at four o’clock on a Friday does not need us, or you.
The first two are deferred — buildable in part, and blocked on something we have not established rather than on time. The last two are out of scope by design: Atlas is source-to-pay, not manufacturing execution.
A short demo on your own parts and units — requirements raised from the BOM and netted against what is already on order, then a receipt that did not conform, recorded against its batch.
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