Me again with an update on our experience with CBIT. I had quite a bit of difficulty uploading sales data and contacted support for assistance. They provided an excel document which did help as it had some explanations of what was required for each column. The csv format is quite tricky but I got there eventually by creating the data set and concatenating it. I then copied this into a new sheet to upload and that worked.
I fed back about some confusion on the FAQ page regarding product upload and IOSS data upload. Today I see the explanatory information that really helped has been added to the FAQ page with clarification about what is required for each different process.
I am finding CBIT to be very responsive and am impressed with the speed at which they are adapting information. I am eager for the app though!