google_billing_budget: adding an all_updates_rule block returns HTTP 400

[fourstepper]

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Terraform Version

terraform -v
Terraform v1.0.6
on darwin_arm64
+ provider registry.terraform.io/hashicorp/google v3.84.0
+ provider registry.terraform.io/hashicorp/google-beta v3.79.0
+ provider registry.terraform.io/hashicorp/random v3.1.0

Your version of Terraform is out of date! The latest version
is 1.0.7. You can update by downloading from https://www.terraform.io/downloads.html

Affected Resource(s)

• google_billing_budget

Terraform Configuration Files

data "google_monitoring_notification_channel" "budget-alerts" {
  project = var.host_project
  display_name = "Budget Alerts"
}

resource "google_billing_budget" "budget" {
  billing_account = var.billing_account
  display_name = "${google_project.project.name} budget"

  budget_filter {
    projects = ["projects/${google_project.project.number}"]
  }

  amount {
    specified_amount {
      currency_code = "EUR"
      units = var.budget_eur
    }
  }
  threshold_rules {
    threshold_percent = 1.2
    spend_basis = "FORECASTED_SPEND"
  }
  threshold_rules {
    threshold_percent = 1
  }
  threshold_rules {
    threshold_percent = 0.8
  }
  all_updates_rule {
    monitoring_notification_channels = [
      data.google_monitoring_notification_channel.budget-alerts.name
    ]
  }
}

Plan

  ~ resource "google_billing_budget" "budget" {
        id              = "billingAccounts/<REDACTED>/budgets/20c2b58d-19ed-4d4a-b8a0-157940eee295"
        name            = "20c2b58d-19ed-4d4a-b8a0-157940eee295"
        # (2 unchanged attributes hidden)

      + all_updates_rule {
          + disable_default_iam_recipients   = true
          + monitoring_notification_channels = [
              + "projects/<REDACTED>/notificationChannels/9045156615967135910",
            ]
          + schema_version                   = "1.0"
        }
    }

Debug Output

-----------------------------------------------------: timestamp=2021-09-17T11:50:13.050+0200
2021-09-17T11:50:13.051+0200 [INFO]  provider.terraform-provider-google_v3.84.0_x5: 2021/09/17 11:50:13 [DEBUG] Retry Transport: Stopping retries, last request failed with non-retryable error: googleapi: got HTTP response code 400 with body: HTTP/2.0 400 Bad Request
Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
Cache-Control: private
Content-Type: application/json; charset=UTF-8
Date: Fri, 17 Sep 2021 09:50:12 GMT
Server: ESF
Vary: Origin
Vary: X-Origin
Vary: Referer
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Xss-Protection: 0

{
  "error": {
    "code": 400,
    "message": "Request contains an invalid argument.",
    "status": "INVALID_ARGUMENT"
  }
}: timestamp=2021-09-17T11:50:13.050+0200
2021-09-17T11:50:13.051+0200 [INFO]  provider.terraform-provider-google_v3.84.0_x5: 2021/09/17 11:50:13 [DEBUG] Retry Transport: Returning after 1 attempts: timestamp=2021-09-17T11:50:13.050+0200
╷
│ Error: Error creating Budget: googleapi: Error 400: Request contains an invalid argument.
│ 
│   with module.rabbitmq.google_billing_budget.budget,
│   on project-base/budget.tf line 9, in resource "google_billing_budget" "budget":
│    9: resource "google_billing_budget" "budget" {

Expected Behavior

The resource should have been applied successfully. It is, however, only applied successfully if the all_updates_rule block is not present.

Actual Behavior

The API returned Error creating Budget: googleapi: Error 400: Request contains an invalid argument.

Steps to Reproduce

1. `terraform apply

[fourstepper]

I think this isn't a bug in the provider, but rather in GCP itself where the created Slack notification channel cannot be chosen even from the GUI; thus, closing

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.