Could you confirm it in writing?

How to say “Could you confirm it in writing?” in Japanese

In Japanese

この解決策(かいけつさく)について書面(しょめん)でご確認(かくにん)いただけますか。

Kono kaiketsusaku ni tsuite shomen de go-kakunin itadakemasu ka.

Could you confirm it in writing? in other languages