how to indicate certain characteristics on a graph

[Anonymous]

Hello

I am trying to create a line graph that will show when a certain promotion happened (red dots). In python this is easy because we can overlay graphs on top of each others.

Thank you for the help

[amitchandak · Accepted solution]

@Anonymous , Create one measure, when promotion happened, then put that as the second line with a marker.

Change the data color of line same as background or #FFFFFF00