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The #1 Solution for Shopify + ShipStation Shipping Headaches

The Problem: Double the Work, Double the Headaches

Merchants using Shopify + ShipStation know the shipping struggle: checkout rates that are wrong, checkouts that drag, and shipping data living in two places. For example, Shopify's shipping logic can inflate rates dramatically - one test showed the checkout price was 82.5% higher than the real cost! That surprise kills conversions: studies find about 48% of shoppers abandon their carts over unexpected shipping fees.

The Common Issues:

• Inaccurate quotes kill sales: Customers hate surprises. Shopify’s setup can show a much higher shipping fee than the real label cost (as much as +82.5%!), eroding trust and dragging cart totals up.

• Delayed or missing rates: ShipStation’s real-time rates sometimes take hours to show in Shopify. Your checkout can be slow or even show an error instead of a quote, causing abandonment.

• Limited carriers: Shopify only displays major carriers by default. If you use a local or specialized courier in ShipStation, those options simply won’t show at checkout — meaning customers can’t choose your best rates.

• Double data entry: Storing product weights, sizes, and custom settings in both Shopify and ShipStation means twice the work and room for mistakes. Your team ends up updating Shopify then ShipStation (or vice versa) just to fix shipping quotes.

The Solution: String Makes Shipping Simple

String solves all of this with a single app. No more double-entry, no more delayed rates, and no more unhappy customers. Here's how we do it:

• Live ShipStation rates

Pull real-time shipping quotes from your ShipStation account right at Shopify checkout. No more flat rates or guesswork – customers see the exact live rates you’d get in ShipStation.

• All your carriers, guaranteed

Every carrier you’ve set up in ShipStation (even ones Shopify doesn’t natively support) is available at checkout. Think of ShipStation as your master courier list.

• Smart packing logic

String uses your saved package sizes and product dimensions plus AI-based packing rules to calculate shipping options precisely. Rates are based on actual box and weight info, so they match your label costs.

• One source of truth

Manage weights, sizes, and shipping rules in ShipStation or Shopify. String can sync any needed product data between Shopify and ShipStation, eliminating duplicate setup. Pick your preferred platform as the single source of truth for shipping.

• Faster checkouts, fewer abandons

By showing quick, accurate rates, String helps prevent cart abandonment caused by shipping surprises. Your checkout loads instantly with correct options, giving customers confidence to buy.

Why Wait? Solve Your Shipping Headaches Today

Ready to ditch shipping headaches? Sign up now for early access to String's Shopify App - be the first to try out accurate, high-performance shipping rates in your store. Enter your email below to join our beta list and get exclusive early access!

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Don't wait for your shipping issues to cost you sales. Get ahead of the game with String.