Yabancı kimlik numarası verilmedi; dolayısıyla pasaport numarası gerekiyor.

Literally, it breaks down like this:

• yabancı = foreigner / foreign
• kimlik = identity / ID
• numara = number
• -sı in numarası = the its / of ending used in noun compounds

So yabancı kimlik numarası means foreigner identity number or more naturally foreign national ID number.

This is a noun compound, which is very common in Turkish. In English we often stack nouns too, but Turkish marks the second noun with a possessive-type ending:

• pasaport numarası = passport number
• telefon numarası = phone number
• kimlik kartı = identity card

Verilmedi comes from the verb vermek = to give.

It can be analyzed as:

• ver- = give
• -il- = passive marker
• -me- = negative
• -di = past tense

So verilmedi means was not given, was not provided, or depending on context, has not been assigned/provided.

In this sentence, verilmedi is passive, so the focus is not on who failed to give it, but simply on the fact that it was not given.

Turkish often uses the passive when the doer is unknown, unimportant, or obvious from context.

So instead of saying something like:

• Biri yabancı kimlik numarasını vermedi = Someone did not give the foreign ID number

Turkish more naturally says:

• Yabancı kimlik numarası verilmedi = The foreign ID number was not given

This sounds neutral and administrative, which fits the sentence very well. Bureaucratic or official Turkish often prefers this kind of wording.

There is no separate subject because Turkish does not always need one.

In the first clause, the thing being talked about is already inside the passive structure:

• Yabancı kimlik numarası verilmedi = The foreign ID number was not given

So yabancı kimlik numarası is the item affected by the action, and the passive verb allows Turkish to avoid naming any subject like they, we, or someone.

In the second clause:

• pasaport numarası gerekiyor = a passport number is necessary / required

Again, there is no personal subject like it. Turkish often forms this kind of statement without a dummy subject.

Dolayısıyla means therefore, thus, consequently, or for that reason.

Yes, it is somewhat formal or at least neutral-formal. It fits official writing, customer service messages, forms, and explanations.

Other possible connectors are:

• bu yüzden = because of this, so
• o yüzden = therefore, so
• bu nedenle = for this reason
• dolayısıyla = consequently / therefore

Among these, dolayısıyla and bu nedenle sound especially suitable in administrative or written contexts.

Because gerekiyor here means is necessary / is required, and pasaport numarası is the thing that is needed.

So:

• Pasaport numarası gerekiyor = A passport number is required

You do not use the accusative here, because pasaport numarası is not a definite direct object of a transitive verb in this structure.

Compare:

• Pasaport numarası gerekiyor = A passport number is needed
• Pasaport numarasını istiyorlar = They want the passport number

In the second sentence, pasaport numarasını is a definite object, so it takes the accusative. In the original sentence, it is simply the required item, not a direct object in the same way.

Gerekiyor comes from gerekmek, which means to be necessary, to be required, or to need to be done depending on the structure.

In this sentence:

• pasaport numarası gerekiyor = a passport number is required

Very often, gerekiyor is used with a verbal noun:

• Gitmek gerekiyor = It is necessary to go
• Formu doldurmak gerekiyor = It is necessary to fill out the form

But it can also be used with a noun, as in your sentence:

• Pasaport numarası gerekiyor = A passport number is needed

So here it behaves a lot like is required.

Yes, but the tone changes slightly.

Possible alternatives:

• Pasaport numarası gerekli = A passport number is necessary
• Pasaport numarası lazım = A passport number is needed

Differences in tone:

• gerekli sounds formal and a bit static, like a requirement listed on a form
• gerekiyor sounds like is required / is needed in this situation
• lazım is common and natural in speech, but less formal

So in an official or administrative sentence, gerekiyor is a very natural choice.

Yes, Turkish word order is flexible, but the original order is the most natural and neutral.

The sentence is:

• Yabancı kimlik numarası verilmedi; dolayısıyla pasaport numarası gerekiyor.

This puts the key information before each verb:

• what was not given
• what is required

You could change the order for emphasis, but it may sound less neutral. For example:

• Dolayısıyla pasaport numarası gerekiyor is already a normal order
• Pasaport numarası gerekiyor, çünkü yabancı kimlik numarası verilmedi is also fine, but now the logic is expressed with çünkü = because

In standard explanatory Turkish, the original order sounds clear and natural.

The semicolon links two closely related clauses:

• Yabancı kimlik numarası verilmedi
• dolayısıyla pasaport numarası gerekiyor

It shows a strong connection: the second clause follows logically from the first.

In everyday writing, people might also use:

• a period
• a comma
• no punctuation in informal texting

But the semicolon gives the sentence a formal, polished, written style, which matches the vocabulary.

Grammatically, -di is the simple past, so the most direct translation is was not given.

However, in real translations, English sometimes uses has not been given if that sounds more natural in context, especially in administrative language.

So depending on the situation, this Turkish sentence could correspond to either:

• The foreign ID number was not provided
• The foreign ID number has not been provided

The Turkish form itself is past tense, but translation into English may vary a little for naturalness.

Yes, definitely.

Several things make it sound official or administrative:

• yabancı kimlik numarası is a technical term
• verilmedi uses the passive, which is common in formal notices
• dolayısıyla is a formal connector
• gerekiyor expresses a requirement in a neutral way

A more casual spoken version might be something like:

• Yabancı kimlik numarası yoksa pasaport numarası lazım.

That means roughly the same thing, but it sounds more conversational and less official.