Event Grid Triggers are not working when Vnet Integration is enabled on Premium Plan, Delivery attempt failed with 403 error, I am not sure which IP/service tag I should set in NSG
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@kspoojary Thank you for your feedback! We will review and update as appropriate.
@mike-urnun-msft It's been 6 months.
Hi @kspoojary @oising - Sorry for the long delay. I'm unable to reproduce this issue as EventGrid trigger (Function App deployed as EP1 and is inside a vnet) is working for me as expected:

If you're continuing to encounter this issue, please open a support case and work with a support engineer who has a deeper insight into your environment in 1:1 setting to troubleshoot the root cause.
Since this channel is for driving improvements toward MS Docs and we didn't determine any changes for this particular documentation upon reviewing this feedback, we will now proceed to close this thread. If there are further questions regarding this matter, please reopen it and we will gladly continue the discussion.