Creating a GA4 Source
On the Conversionomics homepage, you will see a screen with all of your projects; select the project name you will be working on. If you need to create a new project, select the orange button that says "New Project" and follow the instructions
Once you select the project you want to work on, you will see a similar screen as shown below. Select the orange button that says " + New Source"
After selecting the orange button that says " + New Source"
Input the "Source Name" and select "Google Analytics V4" for the type, then click "CONTINUE" once complete.
You will then be redirected to the source's configuration screen.
From here you must select a connection that will allow the source to access data within Adwords. Then choose an account that contains the properties you wish to access.
Next select the Metrics and Dimensions you wish to pull into the source. Optionally you can add filters to limit the data that is pulled.
If 'Keep empty rows' is selected, all empty rows within GA4 will be included in the next load.
Finally, the Look Back Days option allows data within the number of days entered to be reloaded every time the source is run.
Once the required settings are filled, the configuration can be saved and the source will be ready to run.
Additional Information can be found within the official Google Analytics V4 API Documentation