Please see the article AutoCAD to IFC Conversion Example. This and other articles can be found in the Knowledge Base, a good starting point when learning something new.

Hello @nielsgerrits ,

thanks for your reply.

I have seen the Cad IFC article but is for CAD, I have to convert shapefile. 

I don’t have knowledge and experience on this kind of conversion and data, honestly. Do you think that can I follow the same process explained on the article?

Thaks a lot. 

I have no experience in IFC either, but if I need to learn a new format, this is how I start (the articles / documentation). I love to work from working examples, so if the data and workbench from the article work, then you can edit the workspace and change the input, to you shapefile.