In/for such requests, you should make the details clear.
It gave me a pause to choose between the two prepositions. Which one should be used? Does it have to do with the noun in the phrase? What about the following sentences?
In/for event-related questions, you should mention the details.
In/for questions about future events, you should write to me.
I find the last sentence stilted but can't put my finger on what's wrong with it. (Also, should it be "event-related" or "events-related"?)