Create a CloudWatch alarm

The TenantReportReader Lambda function at DataFlow Inc. processes customer reports, and the team needs immediate notification when errors spike. Currently nobody knows about failures until customers complain. A CloudWatch alarm on the function's error metric will detect problems within one minute and can later be wired to an SNS topic for notifications.

In this exercise you will create a CloudWatch alarm that monitors Lambda errors and triggers when the count exceeds a threshold.