I believe you have followed documentation from app exchange and support also validated it.
You might want to validate:
1 OAuth2 credentials
2. if Event Stream API has been enabled by Crowdstrike support
3. tcpdump on qradar.
If you are not seeing any traffic in tcpdump then issue is mostly on CS side, I would engage CS support and QR support to see both sides
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[Ashish] [Khandewale] [Security Consultant]
[SIOC]
[IBM Canada]
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