As per official AWS data, you could create 1000 IAM roles at the time of writing. This number is for an AWS account. If you need more, there is a provision for that too. You have to submit an IAM Limit increase request form to AWS and they will consider your request. If you wish to get trained in AWS, then have a look at Intellipaat’s AWS certification course. Also, take a look at our YouTube video on AWS In 2021: What's New with AWS from our experts.