Which Organisation to create? If you’re going to be building, packaging, or uploading your App, choose Partner Development. This gives you access to a developer edition organization configured especially for partners. If you’re going to be testing your app or showing it to prospective customers, choose Test/Demo. If you’re testing, you can create organizations just like the ones your customers use. If you’re demoing, you can create partner organizations designed for just that purpose, which includes increased storage, licenses and extra features. If you’re going to be creating Trialforce templates, choose Trialforce. This gives you access to a Trialforce Source Organization that you can use to create customizable Trialforce templates.