Getting error on Management group id

[AnshuBhatiaGit]

I have the "Resource Policy Contributor" role on the management group level for the client id and client secret that I created in Azure portal and I have defined both of them in the provider section of Terraform code but still getting the error when I try to create the definition at the Management group level.

Error: Unable to parse Management Group ID "Lab"
│
│ with module.whitelist_regions.azurerm_policy_definition.def,
│ on ../../modules/definition/main.tf line 11, in resource "azurerm_policy_definition" "def":
│ 11: resource "azurerm_policy_definition" "def" {

[gettek]

Management Group Id expects the full resource URI