IAM : AWS services not supported and tagging support

I often get the question of which services do not support IAM?  Some services and features do not support IAM and must use the AWS root account credentials:

• Vulnerability Scanning Coordination Form
• AWS Workspaces
• Visibility of all Data Pipelines
• Specific account management pages, such as account profile, AWS account security credentials, payment methods and management of consolidated billing 
• AWS DevPay 
• CloudFront keypair creation

A full list of supported services is here:
http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_SpecificProducts.html

This page also provides a great list of IAM resource level permissions support, tagging, and STS.