Please help to find details of CloudFormation error InvalidRequest

You're encountering the error "Unable to validate the following destination configurations" due to either an invalid destination or a missing/incorrect resource-based policy that allows S3 to publish notifications to the destination.

To resolve this issue, you can refer to this repost article: https://repost.aws/knowledge-center/lambda-invoke-error-s3-bucket-permission which provides the required destination policy and steps to resolve the problem.

If you continue to face the issue, you can check the PutBucketNotification/PutBucketNotificationConfiguration API call [1] in CloudTrail to view the details. Alternatively, you can reach out to AWS Support [2], as the support engineers have the necessary permissions to check the CloudFormation stack in your account.

References:

[1] https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketNotification.html

[2] https://aws.amazon.com/contact-us/