@Fienefie Thanks for using Microsoft Q&A !!
Please refer to the Azure Purview Pricing page to get pricing details. As per the document -
Scanning is charged per serverless vCore-hour. You will only pay per vCore-hour of scanning that you consume. You will receive 16 free vCore-hours of scanning per month through February 28, 2021. While in preview, scanning of select Power BI and SQL Server assets are free. Also, Consumption is rounded up to the nearest minute.
Please let me know if you have any other questions.
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