What you see in outline mode as outlines in Inkscape is what will be imported into Carbide Create. Avoid special effects and features, or if you use them, decompose them to raw paths.
You’ll want to convert type to paths for the production files.
I believe once you’ve worked with Inkscape all of the above will make sense and be easily applied — if you have any difficulties please post the file here or send it in to support@carbide3d.com and we’ll work things out to a step-by-step tutorial.