What is Source Org?
A Source org is any type of organization where you have your managed package installed and where all managed subscriber editable components like:
- Page Layouts
- List Views
- Field Sets
...are properly configured.
Consider the Source org as a source of changes that you want to deliver to your subscribers' organizations.
Best Practices
It’s a good practice to use:
- TSO organization or
- a demo org
...as a Source org, and not to use a Packaging org.
What about unmanaged packages?
ZuppIO doesn’t support them because unmanaged packages are not upgradable.
Why not a Packaging org?
The only reason is that a Packaging org doesn’t have your managed package installed.