# DownlinkQueueMessage
<a name="API_DownlinkQueueMessage"></a>

The message in the downlink queue.

## Contents
<a name="API_DownlinkQueueMessage_Contents"></a>

 ** LoRaWAN **   <a name="iotwireless-Type-DownlinkQueueMessage-LoRaWAN"></a>
LoRaWAN router info.  
Type: [LoRaWANSendDataToDevice](API_LoRaWANSendDataToDevice.md) object  
Required: No

 ** MessageId **   <a name="iotwireless-Type-DownlinkQueueMessage-MessageId"></a>
 The message ID assigned by IoT Wireless to each downlink message, which helps identify the message.  
Type: String  
Required: No

 ** ReceivedAt **   <a name="iotwireless-Type-DownlinkQueueMessage-ReceivedAt"></a>
The time at which Iot Wireless received the downlink message.  
Type: String  
Pattern: `^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24\:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$`   
Required: No

 ** TransmitMode **   <a name="iotwireless-Type-DownlinkQueueMessage-TransmitMode"></a>
The transmit mode to use for sending data to the wireless device. This can be `0` for UM (unacknowledge mode) or `1` for AM (acknowledge mode).  
Type: Integer  
Valid Range: Minimum value of 0. Maximum value of 1.  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iotwireless-2025-11-06/DownlinkQueueMessage) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iotwireless-2025-11-06/DownlinkQueueMessage) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iotwireless-2025-11-06/DownlinkQueueMessage)