I need this function too. Shopify please update this as I can’t find any app could do this.
Topic summary
Multi‑origin shipping charges combine per location, causing customers to see multiple shipping fees when items are sourced from different locations. Merchants want to charge a single shipping rate while keeping accurate multi‑location inventory, citing lost sales and cart abandonment.
Shopify’s stance: this is expected behavior for multi‑location fulfillment; no native toggle to combine rates and no timeline for change. A June API update reportedly broke prior app workarounds for many stores.
Workarounds and outcomes:
- Configure a single “Shipping From” location and remove rates from others: prevents double charges but depletes inventory from the main location, requiring manual reassignment; conflicts with local pickup/delivery.
- Disable multi‑origin shipping or set one fulfillment location with “Continue selling when out of stock”: avoids double charge but risks overselling and inventory inaccuracies.
- Shopify Scripts (Plus): a shared script detects doubled flat rates (e.g., .99 → .98) and auto‑discounts shipping by 50% to restore the intended rate; best for flat‑rate setups.
- Apps: Shipeasy previously worked; post‑June, new stores are told the feature is disabled (some grandfathered stores still functional). Calcurates says it can’t solve this. Decimal‑io offers a custom solution (primary warehouse must be US). ShipMagic claims a flat‑rate fix, including on Basic.
Status: Unresolved natively; partial solutions exist with trade‑offs. Discussion remains active; merchants keep requesting a one‑rate option.
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