It is possible to make a relation between cis that belongs to different tenants that are not the service provider?
I dont believe its possible because in an ITIL world, typically your tenants would not share CIs and thus wouldnt share relationships between CIs unless they are in the service provider tenant. I believe its designed this way purposely.
Hope this helps,
According to the Jon's update, relationship between CIs is not possible unless they are in the service provider tenant.
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