Kabul tutanağı sadece tarihi değil, aynı zamanda sayacı da gösteriyor.

It is a Turkish noun compound.

• kabul = acceptance
• tutanak = report, record, written minutes, official note

So kabul tutanağı means something like acceptance record/report.

A very common feature of Turkish noun compounds is that the second noun takes the ending -(s)I. That is why you get:

• tutanak → tutanağı

So the structure is not just two bare nouns placed together; it is a standard compound form.

Because in Turkish compounds like this, the second noun usually takes the compound ending -(s)I.

So:

• kabul tutanak ❌
• kabul tutanağı ✅

There is also a sound change here: final k often softens to ğ before a vowel-initial ending.

So:

• tutanak + ı → tutanağı

This is a very common pattern in Turkish.

This is the Turkish pattern for not only ..., but also ....

In this sentence:

• sadece tarihi değil = not only the date
• aynı zamanda sayacı da = but also the meter

So the full structure is:

• sadece X değil, aynı zamanda Y da
• not only X, but also Y

This is one of the most useful contrast patterns in Turkish.

Because they are specific direct objects of the verb gösteriyor.

The verb göstermek means to show, and when Turkish has a definite/specific direct object, it usually takes the accusative ending.

So:

• tarih → tarihi
• sayaç → sayacı

Here the sentence is talking about a particular date and a particular meter/meter reading shown in the document, so the accusative is natural.

This is another common sound change in Turkish.

When some words take a vowel-initial ending, the final consonant softens:

• ç → c
• k → ğ / g
• p → b
• t → d

So:

• sayaç + ı → sayacı

This is completely normal and something you will see very often.

Here da means too / also / as well.

So sayacı da means the meter too or also the meter.

Important: this da is written separately because it is the additive particle, not the location ending.

Compare:

• sayacı da = the meter too
• evde = in the house

That second one is a suffix; this one is a separate word.

Yes, literally it does.

But in many contexts, especially in the pattern sadece ... değil, aynı zamanda ..., it is used more idiomatically to mean:

• also
• as well
• moreover
• but also

So in this sentence, do not translate it too literally as at the same time. It is part of the standard not only ..., but also ... pattern.

Gösteriyor is the -iyor form, often called the present continuous, but in everyday Turkish it is also very commonly used for a present fact or current state.

So here it can naturally mean:

• is showing
• or simply shows

Gösterir is also possible in some contexts, but it sounds more general, habitual, or formal.
Gösteriyor is very natural in ordinary speech and writing.

Because the neutral Turkish word order is usually:

• Subject + Object + Verb

Here:

• Kabul tutanağı = subject
• sadece tarihi değil, aynı zamanda sayacı da = objects / object phrase
• gösteriyor = verb

So the verb at the end is the normal Turkish pattern.

Yes. A simpler version would be:

• Kabul tutanağı tarihi ve sayacı gösteriyor.

That means The acceptance report shows the date and the meter.

The original sentence adds emphasis and contrast:

• not only the date, but also the meter

So the longer version is not about basic meaning; it is about highlighting that both pieces of information are shown.

Usually, yes. Sadece often means only / just.

In this sentence, it appears in the contrast pattern:

• sadece tarihi değil = not only the date

So although sadece by itself means only, together with değil it becomes part of the larger meaning not only ...

That is why you should read the whole chunk together, not word by word in isolation.