Which picking method suits a small D2C warehouse?

If most orders have one to three items, cluster picking (several orders on one trolley) or batch picking (one SKU for many orders) usually cuts walking the most. Single-order picking is simplest for large or B2B orders.

Can warehouse picking run on Android phones instead of handheld scanners?

Yes, a phone camera can scan barcodes for picking. Test it on your own labels, aisle connectivity and printing needs first. With Fretron CommerceOS, your warehouse team works the floor on a phone — fifteen scan stations from gate entry to dispatch handover. No handheld hardware required. There is no offline mode, no printing from the phone and no iOS app.

Does Fretron CommerceOS support FEFO?

Stock is tracked by batch and expiry date, and orders can be reserved first-expiry-first-out (FEFO) when they are allocated.

Which picking methods does Fretron CommerceOS support?

Picking can run single-order, batch, cluster or zone, and orders can be grouped into scheduled waves. Pickers scan the bin, then the item or serial.

What is order picking in a warehouse, and how do you get it right?

Updated: 4 Nov 2026

Order picking is the step where warehouse staff collect the items for each customer order from their storage bins. Getting it right comes down to three choices: a picking method that fits your order profile, a clear rule for which stock leaves first (FIFO or FEFO), and a scan of the bin and the item on every pick.

For an Indian D2C or omnichannel brand, picking is where marketplace orders, website orders and store replenishment meet the same shelves. A wrong pick turns into a return, an RTO cost or a marketplace complaint later in the chain. The sections below cover how picking methods differ, how expiry rules work, and how a small team can scan picks on phones.

What are the main order picking methods?

Most warehouses use one of five methods, or a mix:

Method	How it works	Fits best when
Single-order (discrete)	One picker picks one order at a time, start to finish.	Order volume is low, or orders are large and varied.
Batch	One picker collects the same SKU for several orders in one trip, then the items are split by order.	Many orders share a few fast-moving SKUs, as in a sale.
Cluster	One picker fills several orders at once, into separate totes or crates on one trolley.	Orders are small (one to three items) and spread across many SKUs.
Zone	Each picker covers one area of the warehouse; an order passes from zone to zone or is merged at the end.	The warehouse is large, or some zones need separate handling.
Wave	Orders are released to the floor in scheduled groups, for example by courier cut-off or by channel.	You have fixed pickup times or need to prioritise one channel.

Wave picking is a way of releasing work, so it combines with the others: a wave of marketplace orders can be picked by batch or by zone.

How do you choose a picking method for a D2C or omnichannel warehouse?

Start from your order profile, not from the method:

Lines per order. If most orders have one or two items, cluster and batch picking cut walking. If orders are large B2B or store replenishment, single-order picking is easier to check.
SKU concentration. If a few SKUs make up most units, especially during festive sales, batch picking saves trips.
Courier cut-offs. If couriers collect at fixed times, plan waves backwards from each pickup.
Channel rules. Marketplace orders often have dispatch deadlines that website orders do not. Separate waves let you clear the strictest deadline first.
Team size. A team of four or five rarely needs zones. Zones help once pickers start getting in each other's way.

Many brands run more than one method: batch picking for sale-day volume, single-order picking for B2B and store orders.

What is the difference between FIFO and FEFO picking?

FIFO (first in, first out) sends out the stock that arrived first. FEFO (first expiry, first out) sends out the stock that expires first, whatever its arrival date.

The two give the same result only when every batch arrives in expiry order. They diverge when a newer delivery carries an earlier expiry date, for example after a return is restocked or a supplier ships an older batch. For products with a shelf life, such as cosmetics, food, supplements and personal care, FEFO is the safer rule. Some marketplaces and modern-trade buyers reject stock with too little shelf life left. FIFO suits products with no expiry, such as apparel, footwear and electronics.

How do brands enforce expiry-based (FEFO) picking?

FEFO only works if expiry data exists before the order does. In practice, brands apply it in four places:

At receiving. Record the batch number and expiry date for every inbound unit, against the purchase order or ASN.
At storage. Keep batches identifiable in their bins, so two expiry dates are not mixed without a record.
At allocation. When an order is confirmed, reserve the batch with the earliest expiry. This is where the rule is decided.
At the pick. Send the picker to the bin that holds the reserved batch, and check the batch on the label before the item leaves the bin.

A rule set only at the shelf, such as "put older stock in front", depends on everyone remembering it on a busy day. Setting the batch at allocation makes it part of the order.

How can a small warehouse team do scan-based picking on Android phones?

A dedicated handheld scanner is not the only way to scan. An Android phone camera can read barcodes and QR codes, and an app can tell the picker which bin to go to and confirm each scan. For a small team this removes the upfront hardware cost and the training on a separate device.

The trade-offs to check before you rely on phones:

Scan speed and lighting. A camera is slower than a laser scanner on damaged or glossy labels. Test your own labels.
Connectivity. Check Wi-Fi or mobile coverage in every aisle, and what the app does when the signal drops.
Printing. Decide where pick lists, labels and invoices will print, because a phone may not print them.
Device type. Confirm which operating systems the app supports before buying phones for the floor.
Battery and mounting. Plan charging for a full shift, and a holster or wrist mount so pickers have both hands free.

How do you reduce picking errors?

Most picking errors come from a few repeat causes: look-alike SKUs (size and colour variants), items stored in the wrong bin, and picks confirmed without a check. The fixes are mostly process:

Scan the bin, then the item, on every pick, rather than ticking a paper list.
Store look-alike variants apart, not side by side.
Put stock away to a defined bin at receiving, so the system location matches the shelf.
Check each piece again at the pack bench before the carton is closed.
Review mis-picks by SKU and by bin every week, and fix the location or the label, not only the picker.

How does Fretron CommerceOS handle order picking?

Fretron CommerceOS is order, warehouse and shipping software for Indian consumer brands, running orders, warehouse and delivery on one live record beside your ERP. There is no prebuilt ERP connector. ERP data moves through Fretron's REST API, webhooks or CSV, with the mapping set up per customer.

Picking can run single-order, batch, cluster or zone, and orders can be grouped into scheduled waves.
Pickers scan the bin, then the item or serial.
Stock is tracked by batch and expiry date, and orders can be reserved first-expiry-first-out (FEFO) when they are allocated.
Orders are confirmed and allocated per facility, with stock reserved first-in-first-out or first-expiry-first-out (FIFO/FEFO).
Putaway is directed to zone-compliant bins by product type.
Your warehouse team works the floor on a phone — fifteen scan stations from gate entry to dispatch handover. No handheld hardware required. There is no offline mode, no printing from the phone and no iOS app.
Order, allocation, pick and dispatch share one record — no hand-off integration to break.

Read more about the warehouse management system, the full Fretron CommerceOS suite, how marketplace and webstore orders reach the warehouse, and how stock is kept in step across them in inventory sync across channels.

Comparing software vendors? See Unicommerce alternatives and competitors, compared.

Frequently asked questions

What is order picking?: Order picking is the warehouse step where staff collect the items for each customer order from their storage bins, before the order is packed and handed to a courier.
What is the difference between FIFO and FEFO?: FIFO sends out the stock that arrived first. FEFO sends out the stock that expires first. Use FEFO for products with a shelf life, such as cosmetics, food and supplements, and FIFO for products without one.
Which picking method suits a small D2C warehouse?: If most orders have one to three items, cluster picking (several orders on one trolley) or batch picking (one SKU for many orders) usually cuts walking the most. Single-order picking is simplest for large or B2B orders.
Can warehouse picking run on Android phones instead of handheld scanners?: Yes, a phone camera can scan barcodes for picking. Test it on your own labels, aisle connectivity and printing needs first. With Fretron CommerceOS, your warehouse team works the floor on a phone — fifteen scan stations from gate entry to dispatch handover. No handheld hardware required. There is no offline mode, no printing from the phone and no iOS app.
Does Fretron CommerceOS support FEFO?: Stock is tracked by batch and expiry date, and orders can be reserved first-expiry-first-out (FEFO) when they are allocated.
Which picking methods does Fretron CommerceOS support?: Picking can run single-order, batch, cluster or zone, and orders can be grouped into scheduled waves. Pickers scan the bin, then the item or serial.

See picking in Fretron CommerceOS.

Bring a sample of your order lines to the demo, and we will walk through how they would be waved, picked and scanned.

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