It is possible to upload data to a custom table in Log Analytics workspace using the script provided on https://techcommunity.microsoft.com/t5/azure-sentinel/azure-sentinel-creating-custom-connectors/ba-p....
Is it possible to upload data to a default table, for example to the SecurityEvent table? My goal is to export some data from a table, then change some values and upload them to the same table for testing purposes.
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@Cyb3rMonk No. All externally loaded information will go into a custom table. Even some of the OOTB data connectors, like Okta, write to a custom table.
You can always use a join to combine the information from the existing and the custom tables.