diff --git a/function_app.tf b/function_app.tf
index ff61c6fe57..991270f463 100644
--- a/function_app.tf
+++ b/function_app.tf
@@ -11,6 +11,8 @@ module "function_apps" {
   app_service_plan_id        = can(each.value.app_service_plan_id) || can(each.value.app_service_plan_key) == false ? try(each.value.app_service_plan_id, null) : local.combined_objects_app_service_plans[try(each.value.lz_key, local.client_config.landingzone_key)][each.value.app_service_plan_key].id
   settings                   = each.value.settings
   application_insight        = try(each.value.application_insight_key, null) == null ? null : module.azurerm_application_insights[each.value.application_insight_key]
+  diagnostic_profiles        = try(each.value.diagnostic_profiles, null)
+  diagnostics                = local.combined_diagnostics
   identity                   = try(each.value.identity, null)
   connection_strings         = try(each.value.connection_strings, {})
   storage_account_name       = try(data.azurerm_storage_account.function_apps[each.key].name, null)
@@ -48,4 +50,4 @@ data "azurerm_storage_account" "function_apps" {
 
   name                = local.combined_objects_storage_accounts[try(each.value.lz_key, local.client_config.landingzone_key)][each.value.storage_account_key].name
   resource_group_name = local.combined_objects_storage_accounts[try(each.value.lz_key, local.client_config.landingzone_key)][each.value.storage_account_key].resource_group_name
-}
\ No newline at end of file
+}
diff --git a/modules/webapps/function_app/diagnostic.tf b/modules/webapps/function_app/diagnostic.tf
new file mode 100644
index 0000000000..981bd0dd3a
--- /dev/null
+++ b/modules/webapps/function_app/diagnostic.tf
@@ -0,0 +1,9 @@
+module "diagnostics" {
+  source = "../../diagnostics"
+  count  = var.diagnostic_profiles == null ? 0 : 1
+
+  resource_id       = azurerm_function_app.function_app.id
+  resource_location = local.location
+  diagnostics       = var.diagnostics
+  profiles          = var.diagnostic_profiles
+}
diff --git a/modules/webapps/function_app/variables.tf b/modules/webapps/function_app/variables.tf
index 713ad444b1..b3fb6425cc 100644
--- a/modules/webapps/function_app/variables.tf
+++ b/modules/webapps/function_app/variables.tf
@@ -86,4 +86,10 @@ variable "virtual_subnets" {
 }
 variable "vnets" {
   default = {}
-}
\ No newline at end of file
+}
+variable "diagnostic_profiles" {
+  default = {}
+}
+variable "diagnostics" {
+  default = null
+}