Multilingual Customer Support: How Online Stores Do It

A Shopify store owner had a $55 order turn into a chargeback for fraud. The owner called the phone number on the order. “I called the number but unfortunately they’re French and I don’t speak French.”^[1]

Email went no better. “I tried with google translate over email but it’s difficult and the communications are slow and they play dumb.”^[1]

That was a fraud dispute, not a loyal customer’s question. The gap is the same with any customer, though: a store and a buyer who cannot understand each other.

Multilingual customer support closes that gap. This guide covers what it is, whether your customers want it, and which languages to start with. The guide also compares the five ways to offer this support and shows where each one falls short.

I’m Stefano Bertoli, founder of RuleInside. We sell managed AI agents for WordPress stores, so we sell one of the five ways. For this guide I also tested our own demo store’s agent in Spanish, German, French, Polish and English. I report what it did, including where it fell short.

Multilingual customer support means answering customers in their own language, on the channels they use. For an online store, those channels are email, chat, the phone and messaging apps.

It has three parts, and each one can fail on its own:

• Understanding. Someone, or something, reads or hears the question in the customer’s language.
• Replying. The answer goes back in that same language.
• Knowing the answer. Your policies, product facts and order details are right in that language too.

A store can pass the first part and fail the second. The test later in this guide shows that.

Translating your product pages helps a shopper read them. Support is a conversation, with a question and an answer about one order or one product. A translated site with English-only support still leaves the shopper stuck at the first question.

The questions themselves do not change with the language. They are the same ones every store gets: where is my order, when will it arrive, how do I return it, will it fit. Our guide to customer support for ecommerce covers those questions and who should answer them.

Many do, and every survey below points the same way. How much language changes what people buy is less clear.

CSA Research published a survey of 8,709 consumers in 29 countries in 2020. Its research focuses on translation and localisation. In the same survey, 40% said they will never buy from websites in other languages.^[2] Even 60% of the most confident English readers favour customer care in their own language.^[2]

The same survey also shows the other side. Given two similar products, 66% will choose the cheaper one, even without information in their language.^[2] So language matters, and price still often wins.

In 2025, 74 million people in the US spoke a language other than English at home. That is the Census Bureau’s count of people aged 5 and over.^[3] Almost 45 million of them spoke Spanish. About 27.4 million said they speak English less than very well.^[3]

In the EU, 32.84% of online shoppers bought from a seller in another EU country, by Eurostat’s 2023 count. The count covers the three months before the survey.^[4] The European Commission ran an older survey in 2011. Given the choice, 9 in 10 EU internet users said they always visited a site in their own language. A slim majority, 53%, would accept an English version if theirs did not exist.^[5]

Unbabel, which sells AI translation for support teams, ran its own survey in 2021. It found that 68% of consumers would switch to a brand that offers support in their native language.^[6] Unbabel sells what its survey argues for, so weigh the figure with that in mind.

Start with the language your own customers already use most after your main one. You do not need a survey to find it. Your store already holds the evidence.

• Your orders. Look at the billing and shipping countries of the last few months of orders.
• Your inbox. Count the emails and chats that arrived in another language, and the ones answered in English anyway.
• Your analytics. Check your visitors’ countries and browser languages, and where they leave.
• Your returns and disputes. Look for orders where a question went unanswered because nobody shared a language.

A keyword tool records 20 US Google results for multilingual customer support. Of those, 9 say to pick languages from customer data. Only 5 say to measure results by language. Do both. Add one language, then compare its replies, refunds and repeat orders with those of your main language.

If your checkout or your emails already speak a language, customers may write back in it. One store owner in the EU sells in Dutch, German and English. The owner wrote that “review request emails go out in English unless I upgrade and I have to pay for that”.^[7]

Another owner’s abandoned cart emails worked, but in one language only: “With an increasing number of international customers canceling at checkout, I’d like to send emails in their preferred languages.”^[8]

Check every automatic message your store sends: order confirmations, shipping updates and review requests. Each one invites a reply in its language.

Store owners rarely talk about language as a support strategy. They describe one failed contact at a time. I read what store owners wrote about other languages in our library of Reddit posts. I counted 25 people who sell online or work for a store, and wrote as the one answering customers. Here is how many raised each problem:

• Addresses written in another script, such as Japanese or Korean: 8 of the 25.
• Machine translation for one job, such as an address, a chargeback document or one email: 6 of the 25.
• English as the fallback, by sending in English anyway, asking for English or judging it adequate: 4 of the 25.
• A cost, such as a lost sale, a refund or a contact that failed: 4 of the 25.
• Emails the store wants in the customer’s language, but its tool sends in one language: 2 of the 25.

Not one of them described running a whole inbox through a translation tool. The detailed stories of doing that came mostly from vendors and from accounts promoting a product.

That owner was rewriting Japanese addresses in English for the shipping label. Editing them “seems a bit offensive to my customers”, the owner wrote.^[9]

An Etsy seller who ships to Korea and Japan found a fix that respects the customer. The seller runs the address through a translator, checks it, then asks the customer whether it is correct. “It’s easier for them to type a simple yes/no instead of asking them to type out their whole address in English”.^[10]

That habit carries over to support. When you work through a translation, confirm the key fact with the customer in a short question.

There are five ways to answer customers in their language, and you can combine them.

A person who speaks your customer’s language can handle tone and detail. In the US, the median pay for a customer service representative was $21.53 an hour in May 2025.^[11] That is $44,770 a year. Interpreters and translators earned a median $60,170 a year.^[12]

The limit is coverage, not skill. One person covers the hours they work, in the languages they speak.

Outsourcing companies employ people who speak the languages you need. Of the 20 US Google results for multilingual customer support, 9 cover outsourcing. Five come from outsourcing companies, and two more from firms that broker or also sell outsourcing. Our guide on whether to outsource customer service covers what to ask before you sign. In any language, the team must learn your products and see your orders.

I read the translation help pages of five help desks on 9 November 2026. Each one translates customer messages for your team, and your replies back. A person still writes every answer.

Language detection needs enough words. Zendesk says no message length guarantees detection, “but longer messages produce better results”.^[13] Gorgias says it can detect up to 54 languages, but not from a single word or an extremely short message. Its list shows 52.^[19] If a customer writes only ¿Dónde está?, the language may not be detected at all.

Zendesk also warns that incoming chat translations are not saved and run again on reload, “so translation results may vary”.^[13] Freshdesk detects only one language in a message that mixes two.^[17]

Yes, on chat and email, within each tool’s list of languages. The help centres differ on how the agent picks the language and how many it covers.

• Gorgias AI Agent detects the customer’s language and replies in it, on email, chat and SMS.^[20] Gorgias says its AI Agent supports over 80 languages. Gorgias’s AI Agent pages say it can be used with Shopify stores connected to Gorgias.^[21]
• Tidio lists 48 languages for its Lyro agent. Tidio says Lyro works in the customer’s language rather than translating to English first.^[22]
• Intercom’s Fin detects the language once per conversation and keeps it.^[18] If a customer switches language halfway, Fin keeps replying in the first one.
• Zendesk lists 80 languages for its AI agents.^[23] You must add and activate each one before the agent answers in it.^[24]

An AI agent’s languages come from its model and from its setup. The setup can narrow them, and our own test below shows why you check. Zendesk puts it plainly: other languages may work, “but we cannot guarantee that an AI agent will be fluent in them.”^[23]

Our AI Voice Agent page says the agent detects the language from the customer’s first message. If a store sells mainly into one market, it says we prioritise that language during the build. We then test the agent with the store’s own product names and policy wording. In our own test below, the demo agent followed a switch to Spanish once, then answered in Italian. That test is the part to ask any provider about.

Some can, with more limits than chat. Google’s top results say little about an AI answering the phone. Of the 20 US results I read, only one mentions an AI answering calls in the caller’s language.

Two of the help desks whose pages I read describe voice AI agents, and both limit who can use them:

• Intercom’s Fin Voice supports 29 languages.^[25] It is open only to select Intercom customers who work with its sales team. Intercom says Fin Voice “does not currently detect a caller’s spoken language automatically”.^[26] Intercom’s workaround lets callers choose a language on the keypad.
• Zendesk’s voice AI agents are in an early access programme, with 10 languages available. Callers can switch language mid-call by asking, and calls can be routed by number, location or by asking the caller. Automatic detection of the caller’s language is listed as coming soon.^[27]

Voice platforms set the outer limit. ElevenLabs says an agent can use every language its text-to-speech model supports.^[28] ElevenLabs lists 90 or more languages for its v4 models, and 29 for Multilingual v2.^[29]

A phone call adds a step: the agent must first turn speech into text. In the 2024 evaluation at WMT, the Conference on Machine Translation, speech was the hardest material to translate. The authors say this is likely due to speech recognition.^[30] Our guide to voice AI explains how a voice agent handles a call.

For the easiest language pair, English to Spanish, the best systems are close to flawless. Across a whole conversation, and in rarer languages, machine translation still slips. Three findings from WMT set the limits.

• The easiest pair is close to solved. In 2024, the best systems for English to Spanish produced “close to flawless translations”.^[30] In 7 of 11 language pairs, human translations still scored among the best.^[30]
• Rarer languages lag. A 2023 study found ChatGPT behind traditional machine translation for 84.1% of the languages the study tested. The authors found ChatGPT especially weak in what they call low-resource languages, and in African languages. In the study, a low-resource language has 25,000 to 1 million Wikipedia pages.^[31] Those were 2023 models, so trust the trend more than the exact figure.
• Conversations are harder than single messages. A 2024 WMT contest had systems translate real customer support chats. The systems translated single messages well, but had room to improve across a whole conversation.^[32]

Four of the seven authors of the contest’s report work at Unbabel, which sells translation for support teams. The contest’s chat data was anonymised with Unbabel’s tool.^[32] In Unbabel’s own 2021 survey, poor translation quality left 52% of respondents dissatisfied, the top complaint.^[6]

Shoppers still prefer their own language, rough or not. In CSA Research’s 2020 survey, 65% prefer content in their language “even if it’s poor quality”.^[2]

On 9 November 2026 I wrote to the AI agent on our demo store in Spanish, German, French and Polish. Velàri Skincare is our own demo store, with made-up products, and no order ever ships. I ran one chat in each, and a fifth that began in English and switched to Spanish.

In each single-language chat I asked the same three things: whether a product was in stock, whether it suited sensitive skin, and what the returns policy was. In the fifth, I asked for a person instead of the returns policy.

The agent understood every message. Each reply answered the question asked, and the product facts matched the product pages, except one usage tip. The four chats that asked about returns all got the same rule: unopened products within 30 days of delivery.

The language was the problem. Of the 14 messages not in English, one got a reply in the shopper’s language. Nine got English, and four got Italian. The agent also opened every chat with Ciao!

Our copy of the demo’s setup, dated 24 October 2026, describes an Italian brand and says the agent speaks Italian and English. It also tells the agent to reply in the language of the customer’s latest message. The agent stuck to Italian and English far more often than it matched the customer. So read your agent’s setup, then test what it does.

One law a store owner has run into is Québec’s. Its Charter of the French language says consumers “have a right to be informed and served in French”.^[33] A 2022 section says a business selling to consumers “must respect their right to be informed and served in French”.^[33]

One Canadian store owner learned this at checkout. A translation app left the words Credit Card in English. The owner wrote that “someone actually called the OQLF on us one time”.^[34] The OQLF is Québec’s French language office. The owner fixed it at once and got off with a warning.

Whether these rules reach a store based outside Québec is a question for a Québec lawyer. This guide does not answer it. None of the 20 US Google results for multilingual customer support names a language law.