A trainable classifier in Microsoft Purview is used to automatically identify and classify unstructured data based on content patterns. The classifier can be used in:
1. Retention Labels (Label2) # Supported
# Trainable classifiers can be linked to retention labels to automatically classify and apply retention policies to documents.
2. Retention Label Policies (Policy1) # Supported
# Retention label policies define how and where retention labels are applied, including automatically using trainable classifiers.
3. Data Loss Prevention (DLP) Policies (DLP1) # Supported
# Trainable classifiers can be used in DLP policies to detect and protect sensitive content automatically.