El comprador recibió el producto.

Recibió is the preterite form of recibir and means received in the sense of a completed past action.

• recibir = to receive
• recibió = he/she/it received

So the sentence describes one finished action in the past: the buyer received the product.

This form is third person singular, so it can mean:

• he received
• she received
• it received
• or you received in the formal singular (usted) if the subject were usted

Here, the subject is el comprador, so the buyer received.

The accent mark in recibió shows where the stress goes: re-ci-BIÓ.

Without the accent, recibio would not follow standard Spanish spelling rules for the intended pronunciation. The written accent helps distinguish the correct stressed syllable in the preterite form.

This is very common in third-person singular preterite verbs:

• comió
• vivió
• recibió

A simple Spain Spanish pronunciation guide would be:

el kom-pra-DOR re-si-BYOH el pro-DUK-to

A few useful details:

• comprador → stress on the last syllable: -dor
• recibió → stress on -bió
• producto → stress on duc

In Spain, c before i is usually pronounced like the th in think, so recibió is often pronounced roughly as re-thi-BYOH in much of Spain. In Latin America, it is usually more like re-si-BYOH.

Because both nouns are masculine singular:

• el comprador = the buyer
• el producto = the product

In Spanish, nouns normally need an article much more often than in English. Here, both are specific:

• a specific buyer
• a specific product

So el is the correct definite article for each noun.

The subject is el comprador and the direct object is el producto.

So:

• el comprador = the one who performed the action
• recibió = received
• el producto = the thing that was received

Spanish often uses word order similar to English: Subject + Verb + Object

So this sentence is very straightforward: El comprador + recibió + el producto

Because el producto is a thing, not a person.

Spanish uses the personal a before a specific human being (and sometimes pets or personified beings) when that noun is a direct object.

Examples:

• Veo al comprador. = I see the buyer.
• Recibió el producto. = He/she received the product.

Since producto is an inanimate object, there is no personal a.

Yes, Spanish word order is more flexible than English, so that order is possible. But it sounds less neutral and may give special emphasis.

The most natural, neutral version is: El comprador recibió el producto.

Other orders are possible depending on style, emphasis, or context, but for learners, the standard subject + verb + object order is best.

Yes, if the subject is already clear from context.

Spanish often drops the subject because the verb ending already gives information. Recibió tells you the subject is third person singular.

So:

• El comprador recibió el producto. = explicit subject
• Recibió el producto. = subject omitted, understood from context

Spanish does this much more often than English.

They are related, but not exactly the same.

• comprador = buyer, purchaser
• cliente = customer, client

Comprador focuses on the act of buying.
Cliente focuses more on the commercial relationship with a business.

So in a sentence about receiving a purchased item, comprador works well if you want to emphasize that this person is the buyer.

Comprador is the masculine form. If the buyer is a woman, you would usually say:

La compradora recibió el producto.

So:

• el comprador = the male buyer
• la compradora = the female buyer

The article and noun change together:

• el comprador
• la compradora

Both can refer to the past, but they are used a bit differently.

• recibió = simple past / preterite, a completed action
• ha recibido = present perfect, often connected to the present in some way

In Spain, the present perfect (ha recibido) is often used for recent past events, especially when the time period is still connected to the present:

• Hoy ha recibido el producto. = Today he/she has received the product.

But recibió is still completely correct for a finished past action, especially if you are simply narrating what happened.

Not always. Producto is correct and general, but in real contexts Spanish might also use other words depending on what is meant:

• producto = product
• artículo = item
• paquete = package/parc​​el
• pedido = order

For example:

• if you mean the thing purchased as a commercial item, producto is fine
• if you mean the shipment that arrived, paquete might be more natural
• if you mean the order as a whole, pedido may be better

So the sentence is correct, but context can affect the most natural noun choice.