Do you have any lifecycle rule setup in S3?

S3 lifecycle rules let you automate the transition of objects between storage classes or delete them after a specified period. You create a lifecycle configuration on a bucket or a prefix, then define rules with actions such as 'Transition to Standard‑IA after 30 days' or 'Expire objects after 365 days'. The rules are evaluated every 24 hours by S3, and the actions are applied to objects that match the filter. Lifecycle rules are useful for cost optimization, compliance, and data retention. In the console, you can set up rules via the Lifecycle tab, or programmatically using the AWS SDK or CloudFormation. When you enable a rule, S3 will automatically move or delete objects without any additional code, but you should monitor the lifecycle events and ensure that the transition dates align with your data access patterns.