What difficulties did you face when working with Amazon Web Services infrastructure?

When working with AWS, I often encounter the following challenges:

• Access rights management (IAM): it's difficult to correctly configure policies to ensure security while not limiting functionality.
• Monitoring and logging complexity: setting up CloudWatch and other services to effectively track infrastructure status.
• Resource costs: without control, it's easy to exceed the budget, especially when scaling.
• Service integration: sometimes it's hard to properly connect different AWS services, such as Lambda with S3 or DynamoDB.
• API updates and changes: sometimes changes in the API require code and infrastructure adaptation.

Experience shows that automation through Infrastructure as Code (e.g., CloudFormation or Terraform) helps reduce errors and simplifies management.