# Cannot read properties of undefined (reading 'payload') -- Helium Integration
**URL:** https://community.tago.io/t/cannot-read-properties-of-undefined-reading-payload-helium-integration/1335
**Category:** Devices and Connectors
**Created:** [March 9, 2023, 3:59am UTC](https://community.tago.io/t/cannot-read-properties-of-undefined-reading-payload-helium-integration/1335 "2023-03-09T03:59:16Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@tremmert](https://community.tago.io/u/tremmert)
#### Post date: [March 9, 2023, 3:59am UTC](https://community.tago.io/t/cannot-read-properties-of-undefined-reading-payload-helium-integration/1335/1 "2023-03-09T03:59:16Z")
I am trying to plot some data that is coming in from a Helium integration. Specifically, this is a GPS tracker.
I see the data coming in when using the inspector, but I am getting the error:
Cannot read properties of undefined (reading ‘payload’)
```auto
2023-03-08 21:52:23: [POST] HTTP Request: From: 52.7.225.66 [TagoIO-SDK|JS|10.7.6 (External; Node.js/v16.14.2 linux/arm64)] - Content-Type: application/json - Token Ending: 4546c
2023-03-08 21:52:23: Raw payload: [{"variable":"helium_payload","value":"{\"app_eui\":\"0000000000000000\",\"dc\":{\"balance\":9280178,\"nonce\":2},\"devaddr\":\"7C080048\",\"downlink_url\":\"https://console-vip.helium.com/api/v1/down/xxxxxxxc5\",\"fcnt\":873,\"hotspots\":[{\"channel\":7,\"frequency\":905.2999877929688,\"hold_time\":0,\"id\":\"114e8G5WJqLCWoMQxxNB24pNsGFTpRS7WSjoyEPJfK1uG4HJ5K6\",\"lat\":28.18858766279583,\"long\":-91.7896287777879,\"name\":\"fateur-gzzy-parakeet\",\"reported_at\":1678333941069,\"rssi\":-80,\"snr\":12.800000190734863,\"spreading\":\"SF10BW125\",\"status\":\"success\"}],\"id\":\"0c3f6177-2bfb-41ce-a83a-e5d05b563cc5\",\"metadata\":{\"adr_allowed\":false,\"cf_list_enabled\":false,\"labels\":[{\"id\":\"c324e4b9-c5f1-4b55-9c32-3b7a4735354d\",\"name\":\"GPS Tag\",\"organization_id\":\"6a26e6a0-3c04-41e1-b378-0f196hge772\"}],\"multi_buy\":1,\"organization_id\":\"6a26e6a0-3c04-41e1-jh78-0f19610de772\",\"preferred_hotspots\":[],\"rx_delay\":1,\"rx_delay_actual\":1,\"rx_delay_state\":\"rx_delay_established\"},\"name\":\"ac1f09fffe082fc3\",\"payload\":\"\",\"payload_size\":0,\"port\":0,\"reported_at\":1678333941069,\"dev_eui\":\"AC1F09FGFE082FC3\",\"decoded\":{\"error\":\"unknown_decoder\",\"status\":\"error\"},\"raw_packet\":\"QHwIAEiAaQPVNuNs\",\"replay\":false,\"type\":\"uplink\",\"uuid\":\"116a2f86-b680-4a6a-a793-f2885c012b23\"}","group":"1678333943302"}]
2023-03-08 21:52:23: Error on [LoRaWAN Helium] payload parser: TypeError: Cannot read properties of undefined (reading 'payload')
------
```
---
### Author:  [@freddy.minuzzi](https://community.tago.io/u/freddy.minuzzi)
#### Post date: [March 9, 2023, 6:29pm UTC](https://community.tago.io/t/cannot-read-properties-of-undefined-reading-payload-helium-integration/1335/2 "2023-03-09T18:29:18Z")
Hi Thomas,
It appears that you aren’t sending anything in the payload:
**“payload\”:\“\”,\“payload\_size\”:0,\“port\”:0,\**
The problem might be the way you’re sending the payload.