ArcGIS Dashboard Serial Chart - Data Question

GISPro1

I am creating a chart in ArcGIS Dashboard from a table.  Each record in the table contains ParcelID and OutreachType.  Each parcel has multiple entries.  I need to create a serial chart that shows the number of parcels by the number of outreach attempts.  For example:

ParcelID     OutreachType
12345         Email
12345         Phone
12345         Visit
54321         Visit
54321         Email

So the output that I need in the serial chart would be:

Parcels by Attempt Number
1 = 0
2 = 1
3 = 1

Seems very straightforward, right?  It's got this non-developer stumped.  Thank you for your help.

GISPro1

Actually, I figured it out with a little Arcade.

First I set up the following expression to return a FeatureSet:

return GroupBy(fs,['ParcelNum'],
[{name: 'total_attempts',expression: 'OutreachAt', statistic: 'COUNT'}]);

Then set the Category field to 'total_attempts' with a simple count by 'Row_ID'

Worked like a charm!