What is the cost involved in using Watchlist feature in Sentinel?

[AlphaBetaGamma]

Hi, Can anyone help with the details around the cost involved in using Watchlist feature in Sentinel?

Thanks in advance!

 @Julian Gonzalez @liortamir 

[#2]

Right now it is free since it is in preview. I would doubt, but I am not a MS employee so cannot state for certain, that there would be a charge for it as it will be part of Azure Sentinel and Azure Sentinel's pricing is based on ingestion charges

[#3]

@Gary Bushey Thanks for your response. Yeah, I am trying to find any official documentation which tells details around all the cost associated in using Watchlist but couldn't find any.