I know this thread is old, but this information may still help. As specified in Microsoft Learn portal, "Microsoft doesn't guarantee a specific time after an event occurs for the corresponding audit record to be returned in the results of an audit log search. For core services (such as Exchange, SharePoint, OneDrive, and Teams), audit record availability is typically 60 to 90 minutes after an event occurs. For other services, audit record availability might be longer. However, some issues that are unavoidable (such as a server outage) might occur outside of the audit service that delays the availability of audit records. For this reason, Microsoft doesn't commit to a specific time." ... View more