| author | ms.service | ms.topic | ms.date | ms.author | ms.subservice |
|---|---|---|---|---|---|
kgremban |
azure-iot-hub |
include |
03/06/2024 |
kgremban |
azure-iot-hub-dps |
The following table lists the limits that apply to Azure IoT Hub Device Provisioning Service resources.
| Resource | Limit | Adjustable? |
|---|---|---|
| Maximum device provisioning services per Azure subscription | 10 | No |
| Maximum number of registrations | 1,000,000 | No |
| Maximum number of individual enrollments | 1,000,000 | No |
| Maximum number of enrollment groups (X.509 certificate) | 100 | No |
| Maximum number of enrollment groups (symmetric key) | 100 | No |
| Maximum number of CAs | 25 | No |
| Maximum number of linked IoT hubs | 50 | No |
| Maximum size of message | 96 KB | No |
Tip
If the hard limit on symmetric key enrollment groups is a blocking issue, it is recommended to use individual enrollments as a workaround.
The Device Provisioning Service has the following rate limits.
| Rate | Per-unit value | Adjustable? |
|---|---|---|
| Operations | 1,000/min/service | No |
| Device registrations | 1,000/min/service | No |
| Device polling operation | 5/10 sec/device | No |