If you are referring to our Shipeasy setup, I just named the rates corresponding to each shipper as we are not calculating live rates through the app. We also don’t ship internationally so our rates aren’t too complicated.
Topic summary
Main issue: With Multi‑Origin Shipping (MOS) enabled, Shopify combines separate shipping fees per fulfillment location into one total at checkout, causing doubled/tripled shipping when items ship from multiple locations—even if the physical origin is effectively the same.
Platform behavior/constraints:
- MOS is reportedly enabled by default on new stores and cannot be disabled once active.
- Third‑party shipping/fulfillment apps can only return per‑location rates; they cannot set one rate for the whole order.
- Native Shopify price‑based rates can apply across locations, but live/calculated or app‑based rates are combined per location.
Impact: Merchants report inflated shipping charges, abandoned carts, manual refunds, and customer complaints. This blocks common strategies like flat‑rate or free shipping over a threshold.
Attempted solutions and guidance:
- Shopify staff confirm there’s no native way to charge a single shipping price across multiple locations unless everything ships from one origin.
- Workarounds suggested (with trade‑offs): consolidate inventory to one location, switch back to single‑origin (if Shopify approves), or use store pickup apps; none fully address multi‑location needs.
- App paths: Some apps claim fixes (e.g., Fenix Commerce). One merchant reports success avoiding combined rates using “Shipping Rates – Shipeasy” with weight‑based scenarios. Others cite Calcurates but note it requires CCS (Carrier Service) and higher plans/fees.
Status: No official fix; discussion ongoing with unresolved core functionality.