Use a combo chart to display a dynamic target

[lessassy]

Hello everyone,

I have a bar chart which represent on x axis some dates and on y axis some values

I have a target for each month.

SO i said using a combo chart could be a solution to resolve the problem.

But as I'm new and not very skilled enough with formula I don't really know how to process.

Has anyone had this issue before ?

Thank you ?

[lessassy]

Thanks