1. Create the dataset
Data Source
Views
Columns
Google Analytics 4
Traffic Acquisition: Session Source Report
Source/Medium, DateTz, Sessions
2. Create the Custom Metric
From within the Dataset select Create new on the right hand side or Navigate to Metric Builder and create a new Custom Metric by selecting the Dataset you previously created.
Fill out the fields as shown in the table below.
Name your metric and save it.
Field
Value
Measure
Sessions
Date
DateTz
Dimension
Source
Aggregation
SUM