Not too sure if this is possible but thought it was worth asking.
I have an import where is would be useful if I could use two different default sets depending on the value in one of the inbound fields. Has anyone been able to do this at all? Or is it simply not possible, as currently I am using a dictionary to them out to a separate exception file for importing and would like to get it all into one import run.
Currently this functionality isn't available through default IOM functionality. I would encourage you to post it as a suggestion on our uservoice though! https://iom.uservoice.com/forums/18118-importomatic