Omnichannel Inventory Sync
- Nov 28, 2025
- D2C
Every growing brand hits a strange moment. Shopify says one thing. Amazon says another. Retail partners swear they never received a replenishment you know you shipped. Marketplaces claim your inventory is dangerously low, while the warehouse stares at a full pallet. It is the digital version of hearing different stories from different friends who all witnessed the same event. That is why omnichannel inventory sync matters. Without a single source of truth, your channels begin arguing with each other, your customers get mixed signals, and your team spends half its day explaining numbers that should have matched in the first place.
Search interest around omnichannel tools has grown because brands are selling everywhere at once. That is good for revenue. It is terrible for operations if your systems cannot stay in agreement. Omnichannel sync is not about making your tech stack look pretty. It is about creating a shared reality so your business stops losing sales, missing SLAs, or building safety stock mountains just to stay sane.
Inventory drift typically starts small. A return does not get scanned. A marketplace order gets routed manually. A retail PO ships early without the system knowing. A staff member relies on a paper form instead of a scan. Every little crack erodes accuracy. Over a few weeks, your channels begin reporting different numbers. Over a few months, those numbers become a liability.
Maureen Milligan, Director of Operations and Projects at G10, hears the same frustrations from incoming clients. She says that "most of the customers who come to us from another 3PL, their challenges have always been access to their data, order accuracy and efficiency, and meeting the committed requirements." Without accurate, unified inventory, none of those priorities stay intact.
Omnichannel selling creates multiple points of friction. Shopify wants instant updates. Amazon demands precision. Marketplaces punish late shipments. Retailers expect routing guide compliance. Meanwhile, your warehouse must interpret all these demands and turn them into a single stream of data.
The problem is not the channels. The problem is the pipes connecting them. When your WMS, OMS, and sales channels do not speak fluently to one another, updates lag behind reality. One channel oversells. Another undersells. Your warehouse becomes the referee between platforms that cannot agree on what is physically in the building.
Effective omnichannel inventory sync requires real-time updates. Not daily reconciliations. Not hourly refreshes. Real time. The moment a unit is picked, packed, returned, or received, every channel should update instantly. Without that, your sales channels become outdated the second demand shifts.
Connor Perkins, Director of Fulfillment at G10, explains the operational backbone that makes this possible. "You want everything to be scanned in the warehouse, nothing done on paper." Scanning feeds ChannelPoint WMS the data it needs to synchronize inventory across channels without delay. Real-time sync is only as reliable as the data that feeds it.
Inventory sync becomes more complex when products live across multiple warehouses. Without a unified system, each location becomes a separate island. Orders misroute. Inventory misallocates. Stockouts happen in one region while another region sits fully stocked. A multi-node network exposes the cracks in your sync logic faster than any software demo ever could.
G10 connects all facilities in South Carolina, Wisconsin, Nevada, Arizona, and Texas under the same WMS. That means every node reports inventory in a unified stream. Orders route intelligently. Channels update instantly. You do not have to wonder whether inventory drift is hiding inside a distant warehouse. The system prevents it from happening in the first place.
Each channel behaves differently. Shopify allows flexibility. Amazon punishes mistakes like a strict teacher. Retailers require compliance or they issue fines. Marketplace algorithms alter placement based on stock availability and speed. A true omnichannel inventory sync strategy respects those differences instead of flattening them into a one-size-fits-none workflow.
Joel Malmquist, VP of Customer Experience at G10, highlights how G10 handles mixed channel flows. He says that G10 uses "direct integration with Shopify where orders come in and flow directly into G10" and also supports "B2B shipping into places like Target and Walmart." That unified backbone means inventory accuracy does not break simply because the channel changes.
Returns introduce some of the biggest inconsistencies in omnichannel operations. A return marked as refunded may not be restocked. A restocked item may not be pushed back to every channel. Damaged returns may get counted as sellable inventory. These small mistakes lead to overselling, stockouts, and late shipments.
Joel breaks down the process clearly. "It looks good, we are going to restock this, or it looks damaged, we are going to either dispose of it or put it in a quarantine area." That clarity protects omnichannel accuracy by ensuring every return reenters the system correctly and consistently.
Omnichannel inventory sync is not just about present inventory. It is about forecasting channel-specific demand. A SKU that sells steadily on Shopify may explode on Amazon. A product that barely moves through DTC may have strong retail commitments. Inventory must reflect these patterns, or you end up with confusion that spreads across the entire network.
Holly Woods, Director of Operations at G10, explains how forecasting supports omnichannel sync. "We start planning peak times months ahead of time. We run forecast models, staffing models, and we audit inventory." These audits highlight when channels need different allocations and when sync rules must adjust to shifting demand.
Automation in omnichannel fulfillment is not about replacing workers. It is about reducing the mistakes that cause channels to fall out of sync. Zebra autonomous robots shorten pick paths, reduce fatigue, and keep throughput predictable. Predictable throughput leads to cleaner inventory data, which leads to cleaner sync across every channel.
Holly puts it plainly: the robots "are allowing efficiency with pick paths. They are lowering fatigue on employees." Lower fatigue equals fewer errors. Fewer errors equal better sync.
Inventory drift is expensive. Oversells create cancellations. Cancellations hurt marketplace rankings. Poor availability leads to lost sales. Incorrect routing creates late shipments. Safety stock grows as a defensive maneuver. None of those problems are cheap. Omnichannel errors act like small leaks in the hull of a ship. You do not notice them at first, but they sink you over time.
Once omnichannel inventory sync becomes reliable, everything else starts working better. Orders route faster. Safety stock shrinks. Warehouse teams make fewer adjustments. Retail partners trust your reliability. Marketplaces reward consistent performance. Customers get accurate expectations instead of vague apologies.
Mark Becker, CEO and founder of G10, puts the long-term philosophy simply: "we are going to grow with them." Omnichannel sync makes that growth sustainable by keeping every channel aligned with the physical truth of your inventory.
If your sales channels feel like they are speaking different languages, or your customers keep hitting dead ends because inventory is out of sync, it may be time to rebuild the foundation. Omnichannel inventory sync turns your entire operation into a coordinated network instead of a messy collection of disconnected systems.
When you are ready to turn mismatched numbers into a clean, connected inventory story, G10 can help you build a sync strategy that stays accurate even when demand becomes unpredictable.
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Since 2009, G10 Fulfillment has thrived by prioritizing technology, continually refining our processes to deliver dependable services. Since our inception, we've evolved into trusted partners for a wide array of online and brick-and-mortar retailers. Our services span wholesale distribution to retail and E-Commerce order fulfillment, offering a comprehensive solution.