Ensure Serverless Framework Function Should Not Share IAM Roles

You should refrain from using IAM roles across different Serverless Function services to ensure that each service has the minimum privileges needed to perform the required tasks.
It can help you save time on administration, improve security, reduce service costs, and comply with best practices.
Sharing IAM Role could also cause conflicts or errors if you delete or modify the role for one service and affect another service that depends on it.