History log stores data about edits to entities for 30 days. Edit logs older than one month are automatically deleted.

The statement is false because the history log in Amazon Ad Server (formerly Sizmek Ad Suite) stores data about edits to entities for 90 days, not 30 days. After 90 days, these logs are automatically deleted. This longer retention period allows for a more extensive review of changes made to campaigns, ads, and other entities, which is crucial for auditing, troubleshooting, and maintaining historical records of account activity. If the statement were true, the retention period would be significantly shorter, limiting the ability to track changes over a typical campaign lifecycle.