Table Data Retention

ThreatIntelligenceIndicator is a special table. My understanding is that the time generated value is updated regularly to support the 14 day lookback limit on the analytic rules. You should be able to store values in this table up to the record expiration date. You can set table-level retention but it would not be necessary in this case. https://cloudadministrator.net/2019/10/16/set-per-table-retention-in-log-analytics-via-arm-template/