Learn Farsi: ما در این کمپین، کسانی را که جوان هستند هدف‌گذاری می‌کنیم. - In this campaign, we target those who are young.

When the generic group (kasâni, meaning "those people") is the direct object of the main verb, the object marker râ attaches directly to it, right before the relative pronoun ke. While you might occasionally hear râ pushed to the end of the relative clause in very casual speech, attaching it directly to kasâni is the grammatically standard and preferred structure.

Since kasi ke can mean "anyone who", could we use it here instead of kasâni ke?

Using kasi ke (the person who / anyone who) would make the sentence singular, meaning "we target the person who is young". Because a campaign usually targets a whole demographic, the plural kasâni ke (those who / the people who) makes much more sense. Notice that the verb inside the relative clause, hastand (they are), is also plural to match.

How is the compound verb hadaf-gozâri mikonim built?

It is composed of hadaf (target or goal), gozâri (a noun derived from gozâshtan, meaning putting or setting), and the conjugated light verb mikonim (we do). Literally, it translates to "we do target-setting". It acts as a transitive verb here, which is why its direct object requires the marker râ.

Could the prepositional phrase dar in kampin go after the direct object?