In my terraform azure code, when I run the plan, it says it will replace the resource but I can’t seem to find the issue.

My code creates load balancer, lb rule, lb probe, backend pools etc. The error is specifically in the below block

Wherever it’s calling data azurerm_lb_backend_address_pool, it’s saying ‘known after apply’ and recreating it

 locals {
   backend_pool_add = flatten([
    for lb in var.load_balancer: 
    [
      for vm in lb.backend_pool:
      [
          for ip in vm.ip_address:
          {
            lb_name                             = lb.lb_name
            backend_address_pool_name           = vm.backend_address_pool_name
            ip_address                          = ip
            nic_name = vm.ip_address != null ? "nic" : null
          } 
      ] if vm.vm_nic_name == null
    ] 
  ])

  backend_pool_add_ori = flatten([
    for lb in var.load_balancer: 
    [
      for vm in lb.backend_pool:
          {
            lb_name                             = lb.lb_name
            backend_address_pool_name           = vm.backend_address_pool_name
            nic_name = vm.ip_address != null ? "nic" : null
          } 
          if vm.vm_nic_name == null
    ]
  ])   }


data "azurerm_lb_backend_address_pool" "bap_pool_ipname_ori" {
  for_each = { for bap in local.backend_pool_add_ori : "${bap.backend_address_pool_name}-${bap.lb_name}" => bap if bap.nic_name != null}
  name                =  each.value.backend_address_pool_name
  loadbalancer_id     =  azurerm_lb.lb[each.value.lb_name].id
}

resource "azurerm_lb_backend_address_pool_address" "bap_address" {
  for_each = { for idx , bp in local.backend_pool_add : idx => bp if bp.nic_name != null}
  name = data.azurerm_lb_backend_address_pool.bap_pool_ipname_ori["${each.value.backend_address_pool_name}-${each.value.lb_name}"].backend_address[each.key % 2].name
  backend_address_pool_id = azurerm_lb_backend_address_pool.bap_pool_ip[each.value.ip_address].id
  virtual_network_id      = data.azurerm_virtual_network.vnet_backend_address_pool[each.value.lb_name].id
  ip_address              = each.value.ip_address

depends_on = [ azurerm_lb.lb, azurerm_lb_backend_address_pool.bap_pool_ip]

}

I tried to get the output of data block and that too says “known after apply”

Issue:

        "  # module.load_balancer.azurerm_lb_backend_address_pool_address.bap_address[\"3\"] must be replaced",
        "-/+ resource \"azurerm_lb_backend_address_pool_address\" \"bap_address\" {",
        "      ~ id                            = \"/subscriptions/subscription_id/resourceGroups/rg-smartops-prod-att-appaccess-prod-nx01/providers/Microsoft.Network/loadBalancers/lb_name/backendAddressPools/pool_name/addresses/xxxxx-xx-yyyy\" -> (known after apply)",
        "      ~ inbound_nat_rule_port_mapping = [] -> (known after apply)",
        "      ~ name                          = \"xxxxx-xx-xxx-yyyyy\" -> (known after apply) # forces replacement",
        "        # (3 unchanged attributes hidden)",
        "    }",

Expectation:
No Changes.

Please let me know how it can be solved and if any details required