you might check this (from the install instruction of the app):
***Please onboard your data as sourcetype=tomato. This will sub-sourcetype to various components with their own logic for extractions, event types, dashboards, etc.
This app also assumes your data will exist in index=tomato. If it does not, you will need to update 2 variables.
Settings > macros > tomato_index (index=tomato)
Settings > eventtypes > tomato (index=tomato)