I have a WF which checks if the total $ amount is above a threshold and sets a field. It works as expected in UI. When we import the POs via SOAP services it doesn't run. It's Before Submit Actions and Context includes SOAP. I'm thinking to convert it to a script.

You might try using a different total field. Some of them don't calculate in that setting

Thanks, found the "RUN SERVER SUITESCRIPT AND TRIGGER WORKFLOWS" unfortunately already set to True. I'll continue.