Issue with Remote Desktop Licensing Manager on AWS Microsoft AD

It looks like you're encountering an issue with configuring the Microsoft RDS License Server for AWS License Manager. The error message indicates a problem with the AWS Secret you're using for the service account credentials.

To resolve this issue, you need to ensure your AWS Secrets Manager secret is properly formatted:

1. Sign in to the AWS Management Console and open AWS Secrets Manager.
2. Click "Store a new secret" (or verify your existing secret).
3. For Secret type, choose "Other type of secret".
4. In the Key/value pairs section, add two rows:

• First key: username, with the value being your service account name
• Second key: password, with the value being your service account password

5. Make sure both fields have non-empty values.
6. When naming your secret, ensure it has the prefix license-manager-user-
7. Complete the secret creation process by clicking through the next steps.

The service account referenced in this secret needs to be a valid user account in your Active Directory domain. This account will be used by AWS License Manager for joining the managed RD Licensing server to your domain. This service account is required regardless of whether you're using AWS Managed Microsoft AD or a self-managed Active Directory.

After creating or correcting your secret, try configuring the RDS License Server again through the License Manager console.
Sources
How to configure Microsoft Remote Desktop Services using user-based subscription licenses with AWS License Manager | Microsoft Workloads on AWS
Get started with user-based subscriptions in License Manager - AWS License Manager