I have create more than two custom conversions to tracking some event that doesn't exist in standard event. Is it possible to grab data with supermetrics function ?
Yes, you should fetch the actions metric and split by action type. Then you will see data for all conversion type, including the custom ones.
I too am having the same problem. I have a custom conversion titled, "custom lead". I tried following your steps, but am slightly confused as to what I should select for the metric field. You said to use "actions", but there are many actions to pick from. Can you elaborate, please? It would be great to finally figure this so i don't have to keep pulling my conversions manually.