| title | description | services | author | ms.assetid | ms.service | ms.topic | ms.date | ms.author | ms.custom |
|---|---|---|---|---|---|---|---|---|---|
include file |
include file |
api-management |
vladvino |
1b813833-39c8-46be-8666-fd0960cfbf04 |
api-management |
include |
03/22/2018 |
vlvinogr |
include file |
| Resource | Limit |
|---|---|
| Maximum number of scale units | 10 per region1 |
| Cache size | 5 GB per unit2 |
| Concurrent back-end connections3 per HTTP authority | 2,048 per unit4 |
| Maximum cached response size | 2 MB |
| Maximum policy document size | 256 KB5 |
| Maximum custom gateway domains per service instance6 | 20 |
| Maximum number of CA certificates per service instance | 10 |
| Maximum number of service instances per subscription7 | 20 |
| Maximum number of subscriptions per service instance7 | 500 |
| Maximum number of client certificates per service instance7 | 50 |
| Maximum number of APIs per service instance7 | 50 |
| Maximum number of API operations per service instance7 | 1,000 |
| Maximum total request duration7 | 30 seconds |
| Maximum buffered payload size7 | 2 MB |
1Scaling limits depend on the pricing tier. To see the pricing tiers and their scaling limits, see API Management pricing.
2Per unit cache size depends on the pricing tier. To see the pricing tiers and their scaling limits, see API Management pricing.
3Connections are pooled and reused unless explicitly closed by the back end.
4This limit is per unit of the Basic, Standard, and Premium tiers. The Developer tier is limited to 1,024. This limit doesn't apply to the Consumption tier.
5This limit applies to the Basic, Standard, and Premium tiers. In the Consumption tier, policy document size is limited to 4 KB.
6This resource is available in the Premium tier only.
7This resource applies to the Consumption tier only.