| Field | Description |
|---|---|
| Image Extensions | image/jpeg, image/png |
| Max Media Size | Post-Processing Media Size after encryption should be 5 MB |
| caption | OptionalMaximum characters’ length for caption is 1024 characters. |
| link | Required when type is image. The protocol and URL of the media to be sent. Use only with HTTP/HTTPS URLs. Do not use this field when message type is set to text. |
