baesong gisaga gongdong hyeongwan gakkai wassseupnida.

배송 기사 means delivery driver or courier.

• 배송 = delivery, shipping
• 기사 = driver, operator, or professional worker in certain jobs

A learner may know 기사 as article/news story, but that is a different meaning. In this sentence, it clearly means a person who drives or carries out deliveries.

The particle 가 marks 배송 기사 as the subject of the sentence.

• 배송 기사가 왔습니다 = The delivery driver came
• 배송 기사는 왔습니다 would sound more like As for the delivery driver, he came or could imply contrast

Using 가 here is natural when simply reporting an event: the delivery driver is the one who came near the entrance.

공동 현관 means a shared entrance or common entrance, usually in an apartment building or multi-unit residence.

• 공동 = 공동/shared, common
• 현관 = entrance area, entryway, foyer

So this is not the private door of one home, but the main entrance used by multiple residents.

In Korean, many noun combinations are written with a space, especially when they are still felt as two separate nouns working together descriptively.

So:

• 공동 현관 = literally shared entrance

In real life, you may sometimes also see compounds written more tightly in signs, apps, or casual writing, but spacing them as 공동 현관 is normal and easy to understand.

가까이 means near, close, or close by.

Here it works as an adverb modifying 왔습니다, so the idea is:

• came near the shared entrance
• came close to the common entrance

It suggests the driver approached that area, not necessarily that he is already standing exactly at the entrance.

Because 가까이 is doing the location-related work here.

The structure is:

• 공동 현관 가까이 왔습니다
• literally: came near the shared entrance

Korean often allows a noun plus 가까이 without adding a particle like 에. The phrase functions naturally as near the shared entrance.

If you changed the wording, you might see particles in other versions, such as:

• 공동 현관에 왔습니다 = came to the shared entrance
• 공동 현관 앞에 왔습니다 = came to the front of the shared entrance
• 공동 현관 근처에 왔습니다 = came near the shared entrance

Both relate to nearness, but 가까이 is more common with motion verbs like 오다 and 가다.

• 가까이 왔습니다 = came close / came near
• 가까이에 있습니다 = is nearby / is in a nearby place

So in this sentence, 가까이 왔습니다 sounds very natural because it describes movement toward a place.

Korean often uses 오다 when something moves toward the speaker, listener, or a place that is being treated as the relevant center.

Here, the delivery driver is approaching the recipient’s building or entrance, so 왔습니다 sounds natural from the resident’s point of view.

• 왔습니다 = came
• 갔습니다 = went

If you said 갔습니다, it would sound more like you are describing movement to that location from a more detached outside viewpoint.

왔습니다 is in the formal polite style, sometimes called the 습니다-style.

This style is common in:

• delivery notifications
• customer service messages
• announcements
• formal reporting

Less formal versions would be:

• 왔어요 = polite but less formal
• 왔어 = casual

So 왔습니다 fits very well in a notification or app message.

It means he is near the shared entrance, not necessarily that he has fully arrived at the exact entrance.

That is an important nuance.

Compare:

• 공동 현관 가까이 왔습니다 = he came near the shared entrance
• 공동 현관에 왔습니다 = he came to the shared entrance
• 공동 현관 앞에 도착했습니다 = he arrived in front of the shared entrance

So this sentence suggests proximity rather than a fully completed arrival at the exact spot.

Yes, it is natural and understandable, especially in a delivery-related message.

It sounds like a status update telling the customer that the driver is close. In real apps, you might also see similar expressions such as:

• 배송 기사가 공동 현관 앞에 도착했습니다 = The delivery driver has arrived at the shared entrance.
• 배송 기사가 공동 현관 근처에 왔습니다 = The delivery driver has come near the shared entrance.
• 배송 기사가 곧 도착합니다 = The delivery driver will arrive soon.

So your sentence is perfectly plausible, with the nuance of approaching the entrance area rather than already being exactly there.