Enable indexing of anonymous contacts in the xDB index
Indexing of anonymous contacts by the xConnect Search Indexer is disabled by default. To enable it:
Navigate to the
<xConnect role root>\App_Data\jobs\continuous\IndexWorker\App_Data\config\sitecore\SearchIndexer\folder.
Rebuild the xDB search index.
Enabling this setting typically causes a significant increase in the amount of data to be indexed. Make sure that both Solr / Azure Cognitive Search and the xConnect Search Indexer are sized appropriately.
The xConnect Collection Search service role has an identical
sc.Xdb.Collection.IndexerSettings.xml file under
<xConnect role root>\App_Data\Config\Sitecore\SearchIndexer\. The
IndexAnonymousContactData setting in this file is not used. Do not edit it.