Creating User via Terraform Fails with Error "400 Bad Request: The connection is disabled"
Feb 20, 2026
Overview
When using Terraform to create a temporary connection and test a user, the user creation fails with the error:
400 Bad Request: The connection is disabled
Applies To
- Terraform
- Create Users
Cause
To create users, the client ID performing the "create user" operation must have the targeted connection enabled.
New connections will be, by default, not enabled for pre-existing applications.
Solution
The Machine-to-Machine (M2M) client ID that Terraform uses to manage resources on the tenant must have the new connection enabled before it can create users on a new connection using the "auth0_connection_client" resource.
For example:
resource "auth0_connection" "test_connection" {
name = "testconnection"
strategy = "auth0"
is_domain_connection = false
options {
password_policy = "excellent"
brute_force_protection = true
enabled_database_customization = false
import_mode = false
requires_username = false
disable_signup = false
strategy_version = 2
password_history {
enable = true
size = 1
}
password_no_personal_info {
enable = true
}
password_dictionary {
enable = true
}
password_complexity_options {
min_length = 6
}
validation {
username {
min = 10
max = 40
}
}
mfa {
active = true
return_enroll_settings = true
}
}
}
resource "auth0_connection_client" "my_conn_client_assoc" {
connection_id = auth0_connection.test_connection.id
client_id = auth0_client.terraform_m2m.client_id
}
resource "auth0_user" "test_user" {
email = "test-user-1@email.com"
name = "Firstname Lastname"
nickname = "test.user"
connection_name = auth0_connection.test_connection.name
email_verified = true
password = "secret123!"
depends_on = [auth0_connection_client.my_conn_client_assoc]
}
