# International Ecommerce Troubleshooting > Trace market, catalog, currency, tax, payment, shipping and localization evidence before changing international settings. - Type: Merchant guide - Level: Intermediate - Reading time: About 5 minutes - Audience: Written for store owners, builders, and designers refining high-performance ecommerce stores. - Last updated: 2026-11-04 - Canonical page: https://academy.getzenbasket.com/merchant-questions/international-ecommerce-troubleshooting/ - Part of: [Merchant Questions](https://academy.getzenbasket.com/merchant-questions/) on ZenBasket Academy --- ## What you need to know ### Why are international visitors not buying? Check whether visitors are eligible and relevant, then compare language, product fit, price, landed cost, payments, delivery, trust and technical behavior with a working market. ### Why is international checkout conversion low? Trace the country funnel from cart through address, shipping, tax, payment and confirmation. Segment each error and exit by device, language, currency and method. ### Why are international payments failing? Review payment attempts by method, gateway, currency, issuer country, authentication and standardized decline category. Confirm the merchant account actually supports the route. ### Why is the wrong currency being displayed? Inspect market detection, explicit customer choice, cached storefront state, price-list assignment and checkout session currency. The manual selection should win over an uncertain guess. ### Why are international prices incorrect? Compare source price, market override, exchange rate, rounding, tax inclusion, promotion and cache version. Preserve the order snapshot while correcting future prices. ### Why is the wrong tax being calculated? Reproduce the transaction with its seller, customer and delivery locations, product classification, B2B status, tax IDs, discount and rule version; then consult the responsible tax owner. ### Why are no shipping methods available internationally? Check destination eligibility, product restrictions, inventory origin, parcel limits, carrier services, rate tables, cutoffs and returned carrier errors before adding a manual rate. ### Why are international shipping costs too high? Break the charge into base transport, dimensional weight, zone, fuel, remote area, brokerage, packaging and subsidy. Compare it with the final carrier invoice and parcel measurements. ### Why are customers being charged unexpected duties? Compare the checkout promise with the selected DDP or DAP arrangement, declared classification, origin and value, import entry and carrier collection. Correct both disclosure and shipment data. ### Why are international orders delayed at customs? Locate the dwell point and request from customs or carrier, then verify description, HS code, origin, value, recipient data, permits and duty payment instead of sending duplicate documents blindly. ### Why are valid international addresses being rejected? Test the selected country schema, required fields, local characters, postal data and carrier response. Offer review or correction without inventing state or postal values. ### Why are translations inconsistent? Compare the current source version, translation status, glossary, fallback rules and cached page. Fix the workflow that allowed stale content rather than editing one visible sentence only. ### Why is the wrong market content appearing? Trace domain, URL, account preference, country choice, geo suggestion, cache key and configuration inheritance. Confirm an explicit selection is not overwritten later. ### Why is an international market generating revenue but losing money? Reconcile country revenue to actual fees, conversion, fulfillment, shipping, duties, returns, support and acquisition. Then separate launch investment from continuing unit economics. ### A quick store check Choose one current international symptom and build an evidence timeline before changing market settings. --- ## Frequently asked questions ### Should a symptom be fixed with a manual country exception first? Not before tracing the responsible data, rule, and event path. ### Can one successful test order close an incident? No. Confirm affected combinations and reconcile real orders and downstream systems. ## Related articles - **International Ecommerce Profitability** - **International Ecommerce Readiness Audit**