Terraform provider not updating SMS MFA enrollment template

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Problem statement

We are using Terraform to deploy changes to Auth0. We have this code snippet:

resource "auth0_guardian" "mfa_guardian" {
 policy = "never"
 email = false
 otp = false
 recovery_code = false
 phone {
  provider = "phone-message-hook"
  message_types = ["sms"]
  options {
   enrollment_message = "Custom message here. When prompted, enter the following 
   security code - {{code}}."
   verification_message = "Custom message here. When prompted, enter the following 
   security code - {{code}}.
  }
 }
}

When deployed, Terraform is able to acknowledge this code. However, the Auth0 enrollment and verification template for Phone Message MFA does not get updated.

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Can you let me know why it’s not working?

Cause

was using an older version of the Auth0 Terraform provider (v0.39.0). A change was made to a later version making it so that older versions may not be able to update the enrollment_message and verification_message for SMS MFA.

Solution

You were using an older version of the Auth0 Terraform provider (v0.39.0). A change was made to a later version making it so that older versions may not be able to update the enrollment_message and verification_message for SMS MFA.

Updating the Auth0 Terraform provider to v0.49.0 will solve this issue.