Azure Event Grid quotas and limits
This article lists quotas and limits in Azure Event Grid.
Quotas and limits
The following limits apply to Azure Event Grid topics (system, custom, and partner topics).
|Custom topics per Azure subscription||100|
|Event subscriptions per topic||500|
|Publish rate for a custom or a partner topic (ingress)||5,000 events/sec or 5 MB/sec (whichever is met first)|
|Event size||1 MB|
|Private endpoint connections per topic||64|
|IP Firewall rules per topic||16|
The following limits apply to Azure Event Grid domains.
|Topics per event domain||100,000|
|Event subscriptions per topic within a domain||500|
|Domain scope event subscriptions||50|
|Publish rate for an event domain (ingress)||5,000 events/sec or 5 MB/sec (whichever is met first)|
|Event Domains per Azure Subscription||100|
|Private endpoint connections per domain||64|
|IP Firewall rules per domain||16|
See Azure subscription and service limits, quotas, and constraints for quotas and limits of all Azure services.