# Terms and Conditions

[Celonis Terms and Conditions](https://www.celonis.com/terms-and-conditions/) and [Master Service Agreement](https://assets.ctfassets.net/zmrtlfup12q3/cEKkyf0X3ZcvrOlEvVoXu/f0ed877590343248cbc6fd9f73fc1372/Celonis_MSA_August_2024.pdf) also apply for the Subscription API and all the Process Intelligence APIs.

## How is the Event Subscription API commercially offered ?

Visit our [contact page](https://www.celonis.com/contact/) to contact sales or [get in touch](https://www.celonis.com/contact/) to learn if your contract allows you to use the Process Intelligence APIs Family.

## Are there any license limits?

### Hard limits

| **Limit** | **Value** |
|  --- | --- |
| Concurrency Limit (maximum number of simultaneous requests) | 20 |


#### Impact

- The subscription management requests exceeding the concurrency limits are rejected.


### Soft limits

| **Size** | **# Subscriptions** | **# Daily Events** |
|  --- | --- | --- |
| S | 10 | 100,000 |
| M | 20 | 200,000 |
| L | 50 | 500,000 |
| XL | 100 | 1,000,000 |


Default Size: S

#### Impact

None. Subscription creation requests are not rejected and events are not suppressed.
Only the Celonis team admins are notified.