Die onoopgemaakte vervangingsproduk mag by die afhaalpunt omgeruil word.

Onoopgemaakte means unopened.

It is built from:

• oopmaak = to open
• oopgemaak = opened
• on- = un- / not
• -e = adjective ending used before a noun

So:

• oopgemaak = opened
• onoopgemaak = unopened
• die onoopgemaakte vervangingsproduk = the unopened replacement product

Because it is being used before a noun: vervangingsproduk.

In Afrikaans, adjectives often take an -e ending when they come directly before the noun they describe.

Compare:

• Die produk is onoopgemaak. = The product is unopened.
• die onoopgemaakte produk = the unopened product

So the -e is not changing the meaning; it is just the normal attributive adjective form.

Afrikaans usually writes compound nouns as one word.

So:

• vervanging = replacement
• produk = product
• vervangingsproduk = replacement product

This is very normal in Afrikaans. English often uses two words where Afrikaans prefers one.

You will see this a lot:

• treinstasie = train station
• handdoekrak = towel rack
• afhaalpunt = collection point / pickup point

That -s- is a linking sound/letter often found in Afrikaans compounds.

So the word is not really three separate meanings like replacement-s-product. The -s- mainly helps connect the parts smoothly:

• vervanging
  • produk → vervangingsproduk

You do not always need to analyze that -s- as having its own meaning. It is just a common feature of compound formation.

Here mag means may or is allowed to.

So it expresses permission, not physical ability.

Compare:

• Dit mag omgeruil word. = It may be exchanged. / It is allowed to be exchanged.
• Dit kan omgeruil word. = It can be exchanged. / It is possible to exchange it.

In policy or store-language, mag often sounds like a rule or permission:

• You may exchange it
• It is allowed to be exchanged

Because mag focuses on permission, while kan usually focuses on ability or possibility.

So:

• mag = may / is permitted to
• kan = can / is able to / is possible to

In a returns or exchange policy, permission is usually the important idea. The sentence is telling you what the rules allow.

Literally, it is:

• afhaal = collect / pick up
• punt = point

So afhaalpunt is a pickup point or collection point.

Again, Afrikaans prefers the compound as one word.

By often means at, by, or with, depending on context.

Here by die afhaalpunt means at the pickup point.

That is very natural Afrikaans for a location:

• by die winkel = at the shop
• by die huis = at home
• by die afhaalpunt = at the pickup point

So by is the normal preposition here.

Because this is a passive construction with a modal verb.

The verb involved is:

• omruil = exchange

Its past participle is:

• omgeruil = exchanged

In Afrikaans passive structures, you often get:

• past participle + word

So:

• omgeruil word = be exchanged

And because mag is the finite verb in second position, the rest of the verbal part goes to the end:

• Die produk mag ... omgeruil word.

That is why you do not see omruil by itself here.

Here word is an auxiliary used to form the passive.

It does not mean word in the everyday vocabulary sense. In grammar, it works more like English be in be exchanged.

So:

• omgeruil word = be exchanged

This is a very common Afrikaans passive pattern:

• Die brief word geskryf. = The letter is being written.
• Die produk mag omgeruil word. = The product may be exchanged.

In Afrikaans, word often marks the action/process of the passive, while is often points to the resulting state.

Compare:

• Die produk word omgeruil. = The product is being exchanged / gets exchanged.
• Die produk is omgeruil. = The product has been exchanged / is exchanged already

In a general rule or policy statement, word is the natural choice:

• mag ... omgeruil word = may be exchanged

Because modal verbs such as kan, mag, moet, wil, sal normally do not take te before the following verb.

So you say:

• mag omgeruil word
• kan gebruik word
• moet betaal word

Not:

• mag te omgeruil word

That is just the normal grammar after a modal verb.

A passive sentence is useful when the important thing is the item, not who does the action.

This sentence is about the replacement product, so Afrikaans makes that the subject:

• Die onoopgemaakte vervangingsproduk mag ... omgeruil word.

An active version would be something like:

• Jy mag die onoopgemaakte vervangingsproduk by die afhaalpunt omruil.
• Hulle mag die onoopgemaakte vervangingsproduk by die afhaalpunt omruil.

But in instructions, policies, and store notices, the passive is very common because it sounds neutral and official.

Yes. In Afrikaans, die can mean:

• the for singular
• the for plural

So die by itself does not tell you whether a noun is singular or plural.

In this sentence, the nouns are understood as singular from context:

• die onoopgemaakte vervangingsproduk = the unopened replacement product
• die afhaalpunt = the pickup point

So the number is understood from meaning, not from a special article form.