Use the /aml/watchlist-screening/create endpoint to create a new watchlist screening enrollment for a user. This endpoint allows you to enroll a user in watchlist screening monitoring by providing a userId. The system will validate the user's eligibility and create the appropriate screening enrollment with the configured vendor.

Please note that your product must support watchlist screening to use this endpoint. Once a user is enrolled, you can fetch and manage their watchlist details via the other watchlist endpoints. Enrollment also ensures that the user is monitored for any future watchlist hits according to your product's settings.