A. Ensure that the trust policy of the Lambda function execution role allows EventBridge to assume the execution role.
B. Ensure that both the IAM role that EventBridge uses and the Lambda function’s resource-based policy have the necessary permissions.
C. Ensure that the subnet where the Lambda function is deployed is configured to be a private subnet.
D. Ensure that EventBridge schemas are valid and that the event mapping configuration is correct.

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