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Last tested: Sep 28, 2020
I gave my user permission to the see System Activity and they have permission to schedule Looks, so why can't they send System Activity data?
The user has the see_system_activity permission, but the system_activity model set was not included in the user's model set.
This role allows the user to see the System Activity model, but none of the permissions listed apply to the user's access to the System Activity model. Once the System Activity model is added to the model set for the role, the user should be able to schedule System Activity data!