How does it answer fit and sizing questions?
From your size chart and product data only. Lumi cites your published measurements, fabric notes, and any runs-small/true-to-size guidance you’ve set, and helps a shopper choose between, say, a medium and a large. It never gives body, weight, or health advice — it reads the chart, not the person. When your data doesn’t contain the answer, it says so rather than guessing.
Can it turn a return into an exchange?
Yes, and that’s the point. When a shopper starts a return, Lumi offers a size swap or store credit first, within the windows and rules you set, so the sale stays in the store. A refund is the fallback when policy allows it, not the default. You decide the exchange-first thresholds, and every action is logged with the reasoning attached.
Does it follow our return policy and windows?
Within the boundaries you draw. Return windows, final-sale exclusions, worn/tags-on conditions, and dollar or category limits are enforced on every request. A shopper who pushes past the policy gets a graceful hold while your team gets the case — there is no rogue refund path, and every exchange or refund is auditable.
Will it invent restock dates to make a sale?
It answers from live inventory only. If the size isn’t in stock, Lumi says so and offers a back-in-your-size alert rather than promising a restock date it can’t verify. It will not invent a drop or a return date to close the conversation.
Which platforms and returns tools does it work with?
We’re a Shopify partner, and Lumi works inside BigCommerce, Wix, and Adobe Commerce, plus returns and reviews platforms like Loop Returns, AfterShip, Narvar, Yotpo, and Okendo, and marketing tools like Klaviyo, Attentive, and Postscript — 270+ integrations in all. It can run alongside your existing help desk instead of replacing it. Bring your stack to a demo and we’ll map what’s supported.
Is it safe with payment and card details?
Never in a chat window. Payment happens on a secure checkout link, and Lumi will not ask a shopper to type card details into a DM, chat box, or email. It’s PCI-safe by design — the card stays with your payment provider, not the conversation.
Can it support shoppers in their own language?
Yes — Lumi converses in 70+ languages and replies in whichever one the shopper opens with, carrying your brand voice across every language instead of flattening into textbook phrasing. A Portuguese fit question gets a Portuguese answer, in your tone. International orders stop being second-class tickets.
When a return needs a human, what does that look like?
Your agent inherits a solved puzzle: the shopper’s order and return history, the fit guidance already given, any photos, and a suggested resolution to accept or override. Serial returners, damaged-in-transit claims, and VIP exceptions route to your team automatically the moment a threshold trips — the shopper never restarts their story from the top.