Note: Adtriba Sphere is a legacy feature that we continue to support but no longer sell. The latest version of this feature is available as Funnel Measurement.
If you are already using Funnel Measurement, find more information here. To upgrade, contact us.
You cannot create a custom channel mapping in SPHERE.
Budget allocation and saturation are best analyzed at the source or ad platform level. This is the level where you set budgets for media buying algorithms.