Beden tablosu deneme kabinine kondu.

Literally, beden means body, but in clothing and shopping contexts it very often means size.

So:

• beden = body / size
• beden tablosu = size chart

This is very common in Turkish retail language.

This is a standard Turkish noun compound.

When one noun describes another noun, Turkish often marks the second noun with a special ending, traditionally called the 3rd person possessive suffix or simply the compound marker.

So:

• tablo = chart, table
• beden tablosu = size chart

The -su here does not mean its in the usual sense. It is just the normal way Turkish builds this type of compound.

A similar pattern:

• yemek masası = dining table
• otobüs durağı = bus stop

Because the base word is tablo, which ends in a vowel.

When this compound ending is added after a vowel, Turkish usually inserts -s- as a buffer:

• tablo + su → tablosu

If the noun ends in a consonant, you usually just get a vowel ending instead:

• kabin + i → kabini

So the s is there for pronunciation and structure.

Literally:

• deneme = trying, trying on
• kabin = cabin, booth
• deneme kabini = fitting room / changing booth

In a clothing-store context, this is the normal meaning.

So the sentence is talking about putting the size chart into the store’s fitting room area.

Because the sentence expresses movement to / into the fitting room.

Break it down like this:

• deneme kabini = fitting room
• deneme kabinine = to / into the fitting room

More specifically:

• kabin-i = the compound form
• kabin-i-n-e = to the fitting room

That -e is the dative case, which often means to or into.

The extra -n- is a buffer consonant that appears before case endings after this kind of ending.

Because -e / -a and -de / -da do different jobs.

• kabinine = to / into the fitting room
• kabininde = in / at the fitting room

This sentence is about placing something somewhere, so Turkish uses the form showing direction/movement, not simple location.

So:

• Deneme kabinine kondu = It was put into the fitting room.
• Deneme kabininde duruyor = It is in the fitting room.

Here, kondu means was put or was placed.

It is in the past tense, so the whole sentence means that this happened in the past.

In this context:

• kondu = was placed / was put

A useful comparison:

• koydu = he/she/it put
• kondu = was put / got placed

So the sentence focuses on the result, not on who did the action.

Functionally, yes.

English naturally translates it as a passive:

• The size chart was placed in the fitting room.

Turkish often uses kondu in this kind of passive or result-focused meaning, especially when the person doing the action is unimportant or unknown.

An active version would be something like:

• Birisi beden tablosunu deneme kabinine koydu.
• Someone put the size chart in the fitting room.

Because in this sentence beden tablosu is not acting like the direct object of an active verb.

Compare:

• Birisi beden tablosunu deneme kabinine koydu.
  Someone put the size chart in the fitting room.
  Here beden tablosunu is the direct object, so it takes the accusative.

But in:

• Beden tablosu deneme kabinine kondu.
  The size chart was put in the fitting room.

the chart is the thing being talked about as the main participant in the sentence, so it appears in its basic form: beden tablosu.

Yes. This is a very natural word order.

The pattern is roughly:

• [thing] [destination] [verb]

So:

• Beden tablosu = the size chart
• deneme kabinine = into the fitting room
• kondu = was placed

Turkish word order is flexible, though. You could also say:

• Deneme kabinine beden tablosu kondu.

That is still grammatical, but it changes the emphasis slightly.

Turkish usually does not use articles like English a and the.

So beden tablosu could mean:

• a size chart
• the size chart

Context tells you which one is meant.

In a real situation, if both speaker and listener already know which size chart is being discussed, English would usually use the. If it is being introduced for the first time, English might use a.

Yes. In other contexts, forms of konmak can also mean things like landed or settled:

• Kuş ağaca kondu. = The bird landed on the tree.

But in your sentence, because the subject is beden tablosu and the destination is deneme kabinine, the meaning is clearly was put / was placed, not landed.