Doubt about preposition
I was checking the following short text "Once identified how costs are allocated by each channel, it is possible to provide insights on how to improve its direct margin" and using three different prepositions ("provide insights on"; "provide insights in" and "provide insights about") grammarly did not correct or indicated none of them as an error.
What is the correct preposition and why does the grammar review did not indicate the correct use?
Hero of the day
Person wrote the most question comments.