Reduce Line chart marker size

Hi dan_powerbi123 ,

As of now, power bi doesn't provide you the ability to have marker size less than 5. You can submit this as an idea so that it can be possibly taken care of in the future.

However, you can achieve this from a work-around.

As a work-around, you can try to create scatter plot that will somehow give values on same markers as that of line chart and then overlap both visuals with background disabled. You can certainly reduce the size of points/markers in scatter plot and hence will be able to achieve the equivalent size of 1 or 2.

Steps to follow:

1. Create desired line chart; Do not turn on the markers

2. Create a scatter plot chart with fields in line chart's axis and values being in Scatter plot's X Axis and Y Axis respectively

3. Disable background of scatter plot

4. Overlap both visuals and make sure your scatter plot is placed infront of line chart

5. Reduce size of plots from Format -> Shapes -> Reduce size

6. Adjust the size of both visuals properly

Black Points/markers are from scatter plot and you can observe they are almost to the size of 1 or 2 from line chart marker.

Don't forget to give thumbs up if this post helped you and Accept this as a solution if it solved your query !!!