Import Azure Policy Definitions

I am trying to terraform our existing azure management groups and policies which means importing them into my statefile.
I have the configuration all setup and passing fine when running terraform plan.
When I try to run the “terraform import azurerm_policy_definition” command I get an error “the number of path segments is not divisible by 2 in “providers/Microsoft/.Management/managementGroups/providers/Microsoft.Management/managementGroups/(my management group id)

I have not added my id for security reasons.
I’m running the terraform import command of policy definitions which is stated on the terraform website. I’m not running the subscription one but the management group one.
Anyone had this before?