Hi @Avishka Bandarathilaka , you can create a new Azure subscription and link it to your existing CDX tenant. This will allow you to test Microsoft Defender XDR with Azure Sentinel in a separate environment. Another option is to use a trial subscription to test the integration. You can find more information on how to set up a trial subscription on the Azure website. Additionally, you can consider using a sandbox environment, such as the Microsoft 365 Defender sandbox, to test the integration. The Microsoft 365 Defender sandbox provides a safe and isolated environment for testing and evaluating Microsoft Defender XDR and other Microsoft 365 Defender products.
Please let me know if you have any questions and I can help you further.
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Thank you,
James