I have the setup in DTM followed product syntax and I can see the data collected.
But in the report suite, I have the product, checkout. But I don't have data for Revenue and units ( both showed as 0 ). I am wondering should I do any special setup in report suite?
You can add units and revenue to your products string for any event, but Adobe ignores it except for the purchase event (IOW no point in including units and revenue except on purchase event).
If you want to see (potential) units / revenue along with other events, you can push them to custom events.
Example, using the following:
event1 - counter event - use this for units
event2 - currency event - use this for revenue
You have 2x widget1 at 50.00 each, and 1x widget2 at 75.00