You should upload the biodiversity metric file for your development site. This might be a Small Site Metric or a Statutory Metric. You may have had it prepared by an ecologist, or you may have used a digital tool to help you prepare it.
Your metric file should include all the baseline habitats on your site, and also any works that you intend to undertake. That means both any development you're planning to do, and any on-site biodiversity enhancements you're planning to make. Your metric file should also include any off-site biodiversity units you may have already purchased. You can only be matched to packages on the basis of your site's metric.