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Limits - Publish
Each event contains:
- An event name (1-64 ASCII characters)
- Event data (optional)
- A timestamp (generated in the cloud)
- Device ID (identifies the publisher of the event)
The size and contents of the event data vary depending on the version of Device OS running on the device.
| Device OS Version | Gen | Size Limit | Binary Data |
|---|---|---|---|
| > 6.3.0 | Gen 3 & 4 | 16384 bytes1 | Allowed |
| > 6.2.0 | Gen 3 & 4 | 1024 bytes | Allowed |
| 3.x - 6.1.x | Gen 3 & 4 | 1024 UTF-8 characters | |
| 3.x | Gen 2 | 864 UTF-8 characters | |
| 0.8.0 - 2.x | Gen 2 & 3 | 622 UTF-8 characters | |
| < 0.8.0 | All | 255 UTF-8 characters |
- 1 Large event data and high publishing rate require using the CloudEvent API.