gogaek senteoga jeopsu beonhoreul mesijiro bonaessseupnida.

고객 센터 means customer center or customer service center.

In Korean, many noun combinations can be written with a space, especially when the second noun is a separate borrowed word like 센터 (center). So 고객 센터 is natural.

You may also sometimes see similar expressions written slightly differently in real life, depending on style or branding, but 고객 센터 is a normal spacing.

• 고객 = customer
• 센터 = center

So together: customer center / customer service center

-가 is the subject particle. It marks 고객 센터 as the thing doing the action.

So:

• 고객 센터가 = the customer center / customer service center (as the subject)

In this sentence, the customer center is the one that sent something.

A learner-friendly way to see it:

• 고객 센터가 = It was the customer center that...

This contrasts with -은/는, which would sound more like setting a topic:

• 고객 센터는 접수 번호를 메시지로 보냈습니다.

That version is also possible, but it has a slightly different feel. -가 is simply marking the subject more directly.

접수 번호 means something like receipt number, submission number, application number, or reference number, depending on context.

Breakdown:

• 접수 = receipt, acceptance, filing, submission
• 번호 = number

So 접수 번호 is the number given when something has been received or registered.

In customer-service situations, it often means a case number, ticket number, or reference number.

-를 is the object particle. It marks 접수 번호 as the thing being sent.

So:

• 접수 번호를 보냈습니다 = sent the receipt/reference number

Structure:

• 고객 센터가 = subject
• 접수 번호를 = object
• 메시지로 = by message / via message
• 보냈습니다 = sent

Here, -로 means by, through, or via.

So 메시지로 보냈습니다 means:

• sent it by message
• sent it via message
• sent it in a message

Breakdown:

• 메시지 = message
• -로 = by means of / via / through

So 메시지로 tells you the method used to send it.

Because -로 often marks the means, tool, or method of an action.

Examples:

• 이메일로 보냈습니다 = sent it by email
• 문자로 보냈습니다 = sent it by text
• 카카오톡으로 보냈습니다 = sent it by KakaoTalk
• 메시지로 보냈습니다 = sent it by message

So in this sentence, 메시지로 tells us how the number was sent.

Not always.

메시지 is a general word for message, so it can mean:

• a text message
• an app message
• some kind of written digital message

In many everyday contexts, learners may naturally understand it as by text message or in a message, but the exact type depends on the situation.

If Korean wants to be more specific, it might say:

• 문자로 보냈습니다 = sent by text message
• 카카오톡으로 보냈습니다 = sent via KakaoTalk

So 메시지로 is slightly broader.

보냈습니다 is the formal polite past tense of 보내다 (to send).

Breakdown:

• dictionary form: 보내다
• past stem/result: 보냈-
• formal polite ending: -습니다

So:

• 보냈습니다 = sent

This is a common style used in:

• customer service
• announcements
• formal speech
• professional writing

Because Korean is normally a Subject-Object-Verb (SOV) language.

English:

• The customer center sent the receipt number by message.

Korean order:

• 고객 센터가 = the customer center
• 접수 번호를 = the receipt number
• 메시지로 = by message
• 보냈습니다 = sent

So the verb usually comes at the end in Korean.

Yes, Korean word order is more flexible than English, as long as the particles make the roles clear.

For example, these are possible:

• 고객 센터가 접수 번호를 메시지로 보냈습니다.
• 고객 센터가 메시지로 접수 번호를 보냈습니다.

Both are understandable because:

• -가 marks the subject
• -를 marks the object
• -로 marks the method

However, some orders sound more natural depending on emphasis and context. The original sentence is perfectly natural.

No. Korean often omits the subject when it is obvious from context.

So in real conversation, you might hear:

• 접수 번호를 메시지로 보냈습니다. = (We/They) sent the receipt number by message.

But when the speaker wants to make it clear that the customer center sent it, they include:

• 고객 센터가

Korean often leaves out information that English would usually keep.

Yes. In natural English, customer service is often the better translation.

Even though 센터 literally means center, in real usage 고객 센터 often refers to:

• customer service
• customer support
• the service center
• the customer service department

So depending on context, a natural English meaning could be:

• Customer service sent the reference number by message.
• The customer service center sent the receipt number by message.

보냈습니다 is neutral: sent.

보내주셨습니다 adds an idea like:

• sent it for me/us
• kindly sent it
• did the favor of sending it

It includes 주다 in an honorific/polite sense, which often makes the action sound more considerate or beneficial to the receiver.

So:

• 고객 센터가 접수 번호를 메시지로 보냈습니다. = The customer center sent the number by message.

• 고객 센터가 접수 번호를 메시지로 보내주셨습니다. = The customer center kindly sent the number by message.

The second one sounds more appreciative or respectful.

Yes, that is a very helpful pattern.

Here:

• A가 = who did it
• B를 = what was sent
• C로 = by what means / through what
• 보냈습니다 = sent

So:

• 고객 센터가 = A
• 접수 번호를 = B
• 메시지로 = C
• 보냈습니다 = sent

This pattern works with many similar sentences:

• 친구가 사진을 이메일로 보냈습니다. = A friend sent the photo by email.
• 회사에서 서류를 우편으로 보냈습니다. = The company sent the documents by mail.

A natural pronunciation is close to:

고객 센터가 접쑤 번호를 메시지로 보냈씀니다

A few helpful sound notes:

• 접수 often sounds like 접쑤
• 보냈습니다 is often heard closer to 보냈씀니다 in actual pronunciation

A rough romanized guide:

• gogaek senteoga jeopsu beonhoreul mesijiro bonaetsseumnida

But it is much better to learn it through Korean spelling and listening rather than relying too much on romanization.

Yes, depending on how naturally you translate it into English.

Literally, the Korean structure is closer to:

• The customer center sent the receipt number by message.

But in natural English, people often say:

• The customer center sent the receipt number in a message.
• The customer center sent a message with the receipt number.

Those can express the same real-world situation, even if the Korean wording focuses directly on sending the number rather than sending a message.