Learn Turkish: Sen dün o düğmeye tıkladın ama ucuz ürünler aniden tükenmiş! - You clicked that button yesterday, but the cheap products had suddenly sold out!

The verb tıklamak (to click) requires the dative case (the 'to/towards' direction). In Turkish, you don't just click a button, you click onto a button. So düğme gets the buffer -y- and the dative ending -e.

Why is the verb tükenmiş (had sold out) using the -miş past tense instead of the regular -di past tense?

The -miş suffix here is used for a discovered fact or surprise. The speaker knows you clicked the button yesterday (tıkladın uses the definite past -di because it is a known fact), but they realized after the fact that the products were gone. It captures that feeling of finding out something unexpectedly.

I know bitmek means 'to finish' or 'to run out.' Why use tükenmek here instead?

While bitmek is very common and would be understood, tükenmek specifically means 'to be depleted' or 'to be exhausted.' It is the most natural verb to use when talking about store inventory, tickets, or resources completely selling out.

How is the word aniden (suddenly) formed?