Hello @Kunal Tanti ,
Welcome to Microsoft Q&A Platform. Thank you for reaching out & hope you are doing well.
I understand that you would like to know if you can add the service tags "PowerPlatformPlex/Infra" in the Azure Firewall rules.
As mentioned in this doc,
Service tags are usable in Azure Firewall rules as a destination rule only for inbound or outbound traffic.
As of today, Azure Firewall service tags can only be used in the network rules destination field and not in the source field.
Refer : https://learn.microsoft.com/en-us/azure/firewall/service-tags
Kindly let us know if the above helps or you need further assistance on this issue.
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