Merge pull request #234945 from jlichwa/patch-54

Update rbac-guide.md

Author: prmerger-automator[bot]

articles/key-vault/general/rbac-guide.md

@@ -336,7 +336,7 @@ For more Information about how to create custom roles, see:
 ## Known limits and performance
 
 -   Key Vault data plane RBAC is not supported in multi tenant scenarios like with Azure Lighthouse
--   2000 Azure role assignments per subscription
+-   4000 Azure role assignments per subscription
 -   Role assignments latency: at current expected performance, it will take up to 10 minutes (600 seconds) after role assignments is changed for role to be applied
 
 ## Frequently Asked Questions: