Walmart just introduced a very useful update for Multi-Channel Solutions (MCS). Sellers can now select which carriers they want Walmart to use when fulfilling orders from other channels. This gives sellers much more control, especially because many marketplaces — for example TikTok Shop — place limits on what carriers can be used.
When you create a new channel in Seller Center, you can now select one of the following carrier packages:
- Package A – USPS, FedEx, UPS, LaserShip, and OnTrac
- Package B – UPS, LaserShip, and OnTrac
- Package C – USPS, FedEx, and UPS

You can set your preferred carrier package directly in Seller Center when creating a new channel. It is also available through the API, and GeekSeller is already working closely with Walmart to make sure everything is fully compatible across all marketplaces we support.

This is a great and very practical update from Walmart. It gives sellers more flexibility, helps avoid channel restrictions, and improves overall workflow for multi-channel fulfillment.
