Available stock per warehouse in Microsoft Dynamics 365 Business Central sets the quantity an Amazon listing offers, so the marketplace sells only from locations that can actually ship.
An Amazon listing carries a number you gave it. It is a commitment held per marketplace and fulfilment channel, not a live reading of your warehouse, so the listing keeps selling at that figure until something replaces it. Meanwhile Microsoft Dynamics 365 Business Central knows the stock is spread across locations, some of which will never ship a marketplace order. Publish the total and you oversell. Connecting Microsoft Dynamics 365 Business Central and Amazon settles which locations count and keeps that figure moving, so the number on the listing is one the warehouse can honour.

Quantities published to Amazon are drawn from the Business Central locations that fulfil marketplace orders, rather than from a company-wide total nobody can pick against.
Marketplace orders reach Microsoft Dynamics 365 Business Central as sales documents with their customer and lines resolved, so nothing is keyed from a downloaded report.
The buffer held back from Amazon is configured rather than argued about, so how much risk you carry on a fast-moving line is a decision somebody made deliberately.
The daily routine of exporting stock and uploading a file disappears, giving back the hour it took and removing the version of it that gets skipped on a busy day.
Alumio publishes availability from the Business Central locations you nominate to Amazon at intervals you decide, holding back the buffer you configured, so the listing quantity reflects what is genuinely sellable.
An Amazon order arrives and Alumio creates the Microsoft Dynamics 365 Business Central document with its lines and customer, so fulfilment and invoicing run from the ERP rather than from a marketplace dashboard.
A shipment posted in Business Central updates the matching Amazon order, so dispatch confirmation and tracking reach the marketplace without somebody keying references into a browser tab at the end of a long day.
Alumio sits between sales channels and fulfillment systems as a governed integration backbone. Orders are routed, transformed, and validated, while status updates return to every channel.
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A repricing tool is a frequent addition, because a price that responds to the market needs your cost and your stock position to respond sensibly. Alumio holds those connections centrally and reuses the item mapping already configured, so repricing works from Business Central figures rather than from an assumption about margin.
Yes, and the buffer plus the location list are what make it safe. Alumio publishes availability from the warehouses you nominate on a schedule you control, holding back the quantity you choose, and creates each marketplace order in Business Central as it arrives. Data is staged and reused, which reduces redundant API calls against both sides.
No, this is configuration work rather than development. Listing quantities, warehouse selection and the per-item buffer live in a form that somebody on the commercial side can read, which retires the export and upload done by hand each morning. Where an allocation rule needs more than configuration offers, custom logic stays available through the Code Transformer.
Only the ones that will actually ship a marketplace order, which is usually fewer than the company has. An Amazon listing holds a committed quantity per marketplace and fulfilment channel rather than reading your stock, so whatever total you publish is what it will keep selling. Nominating the fulfilling locations, and holding back a buffer, is what keeps that commitment honest.
Stock that arrives after the buffer is gone is the expensive failure, because the listing carries on selling units already committed elsewhere. Alumio monitors each update live and records the quantity it published, and can alert on no activity as well as errors, so a route that quietly stops publishing is caught. Refusals alert immediately naming the item and the reason, and retries run automatically where configured.
Talk to an Alumio integration specialist. We'll map the right architecture for your systems, at the right scale, so your operations stay reliable through every change.