Why does the configuration package show preselected scope values for some business objects?

For a business object, scope values are selected by default if you selected any scope value when you performed a task to enter setup data.

Scope values are also selected by default if the task is one of the application's core tasks. For example, the task for defining profile options that have predefined parameters to filter setup data. For export purposes, you can remove any of the preselected values from the configuration package, if appropriate. Similarly, you can also add more scope values to the configuration package, if they're relevant for your export process.