Step 1: Complete general Systems Manager setup steps
If you haven't already done so, complete the following general setup steps for Amazon Systems Manager in the Setting up Amazon Systems Manager for EC2 instances section of this user guide. The other steps in that section are required only if you plan to manage Amazon Elastic Compute Cloud (Amazon EC2) instances.
After ensuring that you have completed those steps, continue to Step 2: Create an IAM service role for a hybrid environment.