1. A pick that cannot wait for the next scan
International warehouse logistics covers a WMS (warehouse management system), picking, an AGV, stock counts, inbound and outbound, and a WCS (warehouse control system). In multinational manufacturing, cross-border e-commerce, and a global supply chain, a warehouse system, a picking terminal, an AGV, and an RF handheld sit in warehouses in different countries and have to stay in live contact with the WMS. The SIM is the link. It has to work in many countries, stay up 7×24, and keep latency low.
SimtoLink supplies international IoT SIMs to multinational logistics companies and warehouse operators. Coverage spans 200+ countries and regions and 600+ operator networks, as eSIM or physical SIM, for a picking terminal, an AGV, or an RF handheld. Plans are shaped for the warehouse: by region and by volume, for wave picking, slot navigation, and a count variance.
2. The pick, the robot, the count, and the next warehouse
The floor uses the SIM for the WMS, picking, AGVs, and stock counts. How fast a message has to land, and how much data it carries, are not the same in each case:
WMS and the pick
The WMS and picking have to stay in live contact with the warehouse platform. The SIM carries orders, slots, pick tasks, and a wave. The devices are an RF handheld, voice picking (pick-to-voice), and light picking (pick-to-light). A pick is sensitive to delay: the response has to land in under 2 seconds.
An AGV that cannot hesitate
An AGV and an AMR report position and state to the WCS every 100 ms to 1 second, and take a move task — pick point, drop point, path. Obstacle avoidance needs a command in under 50 ms. The SIM is industrial 4G/5G, and a private-network deployment keeps that traffic prioritized. An automation vendor delivering AGVs in several countries puts every vehicle on one device estate. A remote engineer pushes an OTA and diagnoses a fault over VPN.
The count, the receipt, and the ERP
The WMS syncs both ways with the ERP above it (SAP, Oracle): stock — SKU quantity, batch, slot — and inbound and outbound orders, including a pick confirmation and a goods-in check. A forklift and a tally terminal take a pick task (an electronic pick list) and confirm it as soon as the move is done, which replaces the paper ticket. A multinational 3PL runs equipment in several countries on one SIM estate, which simplifies the IT work.
A 3PL with warehouses in 20–50 countries
A 3PL or 4PL running centers in 20–50 countries puts forklift terminals, AGVs, scales, and security cameras on one connection plan. The console totals, by country and by warehouse, space used, order throughput (pieces per hour), and device online rate, which is what headquarters uses to reshape the network. A shared pool holds the communications cost of many countries, and one rate card makes the finance simpler.
3. A few hundred megabytes on the floor
Each device uses about 100–500MB a month. Most of that is picking and inbound and outbound work, AGVs and RF handhelds, and sessions with the WMS. A warehouse in another country has to change networks on its own, so leave a 20%–30% margin.
A shared pool can cover warehouses in many countries. The console splits usage by country and by device, and it flags a spike that does not match the shift.
4. Stock data, a private path, and a pick that cannot stall
- The stock file is commercial: Warehouse data and inventory can be confidential. Send them on a private APN with TLS, and meet each country’s data rules.
- A building in another country: The device has to change networks on its own. Pricing is one rate card, and the bill is itemized.
- A floor that does not close: The warehouse has to stay up 7×24. The SIM switches among operators, with availability at 99.9%.
- Delay on the pick: Picking and AGVs are sensitive to latency. The path is 4G and 5G.
5. What the warehouse network is buying
Coverage runs to 200+ countries and regions and 600+ operators, so a device joins the local network wherever the building is. A shared pool absorbs many countries and many warehouses. The plan — by region and by volume — covers the WMS, picking, AGVs, and stock counts.
6. Before the first wave is released
Start with the floor: how many devices, which countries, monthly data, and how they talk to the WMS. From that, choose a single SIM or a shared pool, and pay-as-you-go, a monthly bundle, or a regional plan. Test in the target country. Activate SIMs, set the APN, and bind devices in bulk on the SimtoLink platform. After go-live, alert on data use and inspect on a schedule.
SimtoLink already supplies SIMs to multinational logistics companies and warehouse operators. If you are connecting a warehouse network, contact SimtoLink for a plan built around those buildings.