Failed to send one byte message to AWS IOT Wireless device through queue downlink message

Question

When I try to send a one byte message to my LoRa device that is connected to AWS IOT Wireless server I get a warning when I enter "1" in the Payload field and try to Submit that says:

```
Payload must follow pattern: ^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$
```
This is under:
AWS IoT > Wireless connectivity > Wireless devices > [Device ID] > Queue downlink message

Accepted Answer

Hi. The payload must be entered in Base64 format. So a 1 byte value of 0x01 is `AQ==`.

https://base64.guru/converter/encode/hex

Failed to send one byte message to AWS IOT Wireless device through queue downlink message

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