azurerm_ip_group_cidr cannot be added to an ip_group hosted in a different subscription

[LaurentLesle]

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Terraform Version

1.9.7

AzureRM Provider Version

4.0.1

Affected Resource(s)/Data Source(s)

azurerm_ip_group_cidr

Terraform Configuration Files

# root code:

# 2 providers
# azurerm target the application landingzone with the CIDR to register in the ip group
# azurerm.connectivity target the connectivity subscription where the IP Group is hosted

provider "azurerm" {
  features {}
  subscription_id                 = var.subscription_id
  resource_provider_registrations = "none"
}

provider "azurerm" {
  alias = "connectivity"
  features {}
  subscription_id                 = var.connectivity_subscription_id
  tenant_id                       = var.tenant_id
  resource_provider_registrations = "none"
}

# module to call the ip group
module "azurerm_ip_group_cidrs" {
  source   = "./modules/azurerm/terraform-azurerm-ip-group-cidr"
  for_each = var.azurerm_ip_group_cidrs

  providers = {
    azurerm.connectivity = azurerm.connectivity
  }

  ip_group_id          = var.ip_group_id
  cidrs                = each.value.cidrs
}

##### submodule
terraform {
  required_providers {
    azurerm = {
      configuration_aliases = [
        azurerm.connectivity
      ]
    }
  }
}
resource "azurerm_ip_group_cidr" "this" {
  for_each = var.cidrs

  provider = azurerm.connectivity

  ip_group_id = var.ip_group_id
  cidr        = each.value
}

variable "ip_group_id" {
  type = string
}

variable "cidrs" {
  type = set(string)
}

Debug Output/Panic Output

See picture in reference

Expected Behaviour

CIDR should be added to the IP Group even if the IP Group has been created into a different subscription.

Actual Behaviour

Failing to add the CIDR to an existing

Steps to Reproduce

Create a sub module and run the code above

Important Factoids

No response

References

[github-actions]

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