Can I fulfill wholesale and DTC from the same warehouse? How do I set that up?

Yes. One physical pile. Two work queues. Different pack rules. Different available-to-sell. Not a second inventory system.

Share on-hand but not available-to-sell

On-hand is shared. ATS is not. Fund a wholesale hold (a reservation, or a zone outside primary sellable) for open POs plus inbound you have already sold. DTC publishes the remainder after a buffer. A display pool changes what each channel sees. It does not stop the floor from allocating a 20-case order if 20 exist. If a Nordstrom PO must be untouchable, park it outside the primary sellable zone and pick against that hold. A separate "wholesale warehouse" that is just another receiving step will slow you down and still share the same aisle. Dummy locations do not create holds. They create a second receiving step and a second ATS lie. Wholesale ATS is the hold. DTC ATS is the remainder. Add them back to on-hand and publish the sum, and you sell the hold twice. Fulfill both from one building only if you can name, for every line, which queue picks it, which hold it came from, and which pack rule prints the carton.

Pallet versus parcel work queues

Work is pallet versus parcel. Bulk-ship or case-pick for wholesale: case-pack, inner-pack, SSCC, BOL, retailer-assigned carrier. Tote or batch pick for DTC: eaches, packing slip, parcel. Exclude wholesale channels from the DTC batch pool or a WS order lands in a tote. Wholesale Net30 needs its own channel import rules. Do not loosen DTC paid-only so unpaid wholesale will import. Default the wholesale channel to the site (or zone) that actually holds case-pack. Do not split a retail PO across nodes unless the routing guide allows it. Pack size on the 850 has to reach the pick face. If wholesale is case-pack and the tote system only sees eaches, the 856 goes out in the wrong UOM. Carton labels and the BOL are pack-time rules on the same SKU, not a second product.

Slot one catalog for both motions

Slot for both motions without two catalogs. Case-pack and reserve in bulk. A-movers for DTC in the forward pick face. Receive a PO into the hold that funded the buy, or remainder math lies until you re-import the holds. Every order is a native order. Spreadsheet adjustments for Faire, Amazon replenishment, or a wholesale spreadsheet are how DTC oversells. If this building is a 3PL, their on-hand is still a file, not a live pick face. Publish only the primary sellable zone. The hold stays off the channel. If you cannot name the queue, the hold, and the pack rule for a line, you do not have a shared warehouse. You have two teams arguing over one bin.