Adapter notifications can use the Exactly Once notification feature. This feature ensures that notification data will not be duplicated even if a failure occurs during processing. This is achieved by assigning unique IDs for each publishable document. After a processing failure, Integration Server checks for duplicate records in storage and ignores any duplicate IDs.

Because this feature ensures that the rows of the data in the buffer table will not be duplicated even after a processing failure, you should not re-create a notification in the event of a processing failure. The Exactly Once feature will automatically make the appropriate corrections as needed.