One catalogue, every store
updated the moment it changes
Running the same products across several stores means a stock count, a price or a description going out of sync the moment one platform updates and the others do not hear about it. We build an agent that treats one system as the source of truth and pushes every change to every connected store the moment it happens.
The process today
Running the same catalogue across two or more stores creates a synchronization problem the moment any one of them updates independently: a stock count drops on Shopify after a sale but the number on a marketplace listing does not move until someone manually checks, and in the gap a customer orders something that is already out of stock. Retailers running multiple channels without a real sync layer commonly report overselling incidents as one of their most frequent and most damaging operational failures, since it means refunding a customer, apologizing, and sometimes losing the account standing on the marketplace itself.
Price and description drift cause a quieter version of the same problem. A price updated in one place during a promotion and not propagated everywhere means either underselling on channels that missed the update or a customer screenshotting the mismatch and asking which price is real. Manual reconciliation, someone checking every channel against the master list on a schedule, catches some of this, but the gap between update and reconciliation is exactly where the damage happens, and the person doing the checking has other work competing for their time.
What the agent does
Treats one system as the single source of truth, defined together with your team, whether that is your main store, your warehouse system or a dedicated catalogue tool, so every other channel takes its data from that one place instead of being independently maintained.
Propagates stock, price and description changes in real time, pushing an update to every connected channel within minutes of it happening in the source system, closing the gap where overselling and price mismatches happen.
Resolves conflicts by rule, not by guess, following resolution logic your team defines upfront for the cases where two systems genuinely disagree, and escalating to a human only the cases the rules do not cover.
Alerts on mismatches before they go live, catching a sync that would push a clearly wrong value, a stock count that jumped impossibly, a price that dropped to zero, and holding it for review instead of pushing it straight to a customer-facing page.
Logs every field changed, where and when, so a discrepancy a customer or a support agent flags can be traced to the exact sync event that caused it instead of a guessing game across systems.
Runs a scheduled reconciliation pass underneath the real-time sync, catching slow drift that an individual update might have missed and confirming every channel still matches the source of truth.
What stays with humans
The agent propagates and reconciles, it does not decide a pricing strategy or a stock allocation policy across channels. Conflict resolution rules are set by your team, not invented by the agent, and any conflict outside those rules is escalated rather than guessed at. A detected sync error that could affect live customer-facing pricing triggers a rollback to the last known-good state and a human review before the retry.
Guards
A parallel-run period where the sync operates alongside your existing process and results are compared before cutting over fully, so a field-mapping error surfaces in testing. Every sync event is logged per field, per channel, with a timestamp, so any discrepancy is traceable. A scheduled reconciliation pass catches drift between real-time updates. Rollback to the last known-good state triggers automatically on a detected error, and a kill switch stops sync instantly across all channels.
Price and timeline
| Package | Price | Best for |
|---|---|---|
| Single automation | from $1,500 | Two to three stores or marketplaces synced against one source of truth |
| Department package | from $2,500 | Catalogue sync plus listing generation and pricing rules across your full channel footprint |
7 to 14 days, most of it spent on field mapping and a parallel-run period so the first live sync has already been validated against real data.
Related
Shares its field mapping with marketplace listing generation and feeds directly into pricing rules and margin guards, since all three depend on the same source-of-truth catalogue. Also underpins order fulfilment routing, which needs accurate stock data to route an order correctly. Part of automation of everything digital and built the way we build AI agents for our own products. We run this on our own and client stores, including our own marketplace ProBay with an AI agent team and the D2C store audit and rebuild in Thailand.
Tell us which stores and marketplaces need to stay in sync and we will send back a fixed price and a plan for the first week: get in touch.
Tired of doing this by hand? We can take the whole routine off your team, not just this step: Routine takeover, from $400 →
FAQ
How much does an AI catalogue sync agent cost?
Syncing two to three stores or marketplaces against one source of truth starts from $1,500. A department package covering sync plus listing generation and pricing rules starts from $2,500, with the exact price depending on how many channels and SKUs are involved.
How long does it take to go live?
7 to 14 days: defining which system is the source of truth, mapping fields across every connected store, and running sync in parallel with your existing process before fully cutting over, so a mapping error surfaces in testing rather than on a live store.
Which tools does it connect to?
Shopify, WooCommerce, Amazon, eBay and similar platforms through their own APIs, your warehouse or inventory management system as the stock source, Google Sheets for smaller operations, and Claude for resolving ambiguous conflicts and flagging mismatches that need a human decision.
What if two stores disagree about stock or price?
Conflict resolution rules are set with your team before launch, which system wins for which field, and any conflict the rules cannot resolve automatically is flagged for a human rather than guessed at. A scheduled reconciliation pass also catches drift that real-time sync might have missed.
Is our catalogue and sales data safe?
The agent connects through credentials you control, scoped to the stores and marketplaces you approve, and does not retain your catalogue or sales data outside the sync session. Every change is logged so any discrepancy can be traced back to its source.