What happens if event is published to event grid without any event subscription

Shree Charan 21 Reputation points
2021-07-15T05:43:54.12+00:00

What happens if I publish event to event grid that which does not have any event subscription. Will the event get dropped if not, if I add a event subscription later on with event handler, will the event handler receive the event?

Azure Event Grid
Azure Event Grid
An Azure event routing service designed for high availability, consistent performance, and dynamic scale.
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  1. MayankBargali-MSFT 68,471 Reputation points
    2021-07-15T06:17:46.217+00:00

    @Shree Charan As soon as the events are send to event grid topic it will be passed to event grid subscription that are created under that topic based on the configuration and filter condition. In case if you don't have any event grid subscription created under that topic then the events will be dropped as there are no event handler/subscriber for that topic. If you add event grid subscription later on still the earlier event will not be send as the events are already dropped.
    In case you have subscription created and matching the filter conditions then the delivery and retry will happened as mentioned in this document.

    Feel free to get back to me if you have any queries or concerns.

    Please 'Accept as answer' and ‘Upvote’ if it helped so that it can help others in the community looking for help on similar topics.

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