"Sarah is very stylish when she comes to the office."

Translation: Sarah est très chic quand elle vient au bureau.

[Owatonna2]

Why not... Sarah est très à la mode quand elle vient au bureau

[Martin742721]

Why is "lorsque" in place of "quand" wrong?

[PotterHeaded123]

I think it should be considered correct in this context. The sentence will become : " Sarah est très chic lorsqu'elle vient au bureau." I found a further explanation for the usage of both words:
https://french.stackexchange.com/questions/31875/when-to-use-lorsque-and-quand