October 01, 2021, File Storage Security—Azure storage stack now enables dead lettering
for both the protecting blob storage's Event Grid System Topic and the Post Scan Action
Tag function's subscription to the Scan Result Topic. You can find the resource ID
of the dead-letter storages in the `blobSystemTopicDeadLetterStorageID` and `blobScanResultSubscriptionDeadLetterQueueID`
fields on the storage stack's deployment Outputs page. This functionality requires
a stack update.
You monitor errors that occur during Azure functions that either process the blob
created events or set the scan results to the blob's metadata or index tags from the
dead-letter storages. For more information, see Monitor errors.