What customers actually bought in Shopify reaches Marketo as history against a person, so campaigns are built on real purchases rather than on who happened to open an email at some point last month.
Marketo organises everything around a person, and it recognises that person by their email address. A Shopify shop, meanwhile, will happily take an order from somebody who never made an account and never intends to. Send everything across and the marketing database fills up with one-time buyers who look like leads. Send nothing and campaigns run blind to what people have actually bought. The Shopify to Marketo integration is mostly a decision about who belongs in there at all, and then about which purchases are worth acting on. Everything else can stay in the shop.

What somebody bought reaches Marketo alongside their record, so a campaign can speak to actual buyers rather than to everyone who once looked at a product page.
Only the people you decided belong in Marketo are created there, so the marketing list does not quietly fill up with one-off buyers who will never open anything.
Marketing preferences captured in the shop reach Marketo with the record, so what someone agreed to is respected without anybody maintaining a second list by hand.
Because purchases arrive as they happen, a thank-you or a reorder prompt goes out while it still makes sense rather than a fortnight after the parcel turned up.
A customer completes a purchase in Shopify and their record and order reach Marketo together, so they enter the right campaign as a buyer rather than being added later as an anonymous email address that nobody recognises.
What somebody bought and when they bought it reaches Marketo, so a prompt about running low is sent based on that actual purchase rather than on a general schedule that suits nobody in particular especially well.
Guest purchases that you decided should not create a marketing record are filtered out before they reach Marketo, so the list stays made of people worth talking to rather than everybody who has ever checked out once.
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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An advertising audience is a frequent addition, because the people worth an email are usually worth reaching elsewhere too, and building that list by hand goes stale immediately. It works from the same customer matching as this one, so the same definition of a buyer is used in both places rather than drifting apart over time.
Yes, and the decision worth making first is which events create a person and which are just activity. A first purchase probably deserves a record. A second one is something to note against the record that exists. Alumio applies whichever rule you choose, so Marketo receives history against people rather than a stream of orders with nobody attached.
No, and the part worth thinking about is who looks after it afterwards. Marketing usually wants to change which purchases trigger which campaign, and if that means a development request it will not happen. Set up in a form, those rules belong to the people who use them. The Code Transformer covers anything a form genuinely cannot describe.
Fewer than the shop will offer you. Marketo identifies people by email, so every guest checkout with a valid address is a candidate, and accepting all of them turns a marketing database into an order log. A workable line is people who consented, plus buyers you intend to talk to again, with everything else left in the shop where it can still be reported on.
An order arriving before the person does leaves the purchase attached to nobody, so a campaign that should have fired never does and nothing looks broken. Alumio catches that as it happens, keeps a record of the customer it was creating, and notifies somebody immediately with the reason Marketo would not accept it. Retries run where configured, so no buyer is silently missed.
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.