...
The table is configured via the "Data Table Config" in the "Device Type".
Uplinks & "Parser returned nil"
Uplinks are raw sent messages from a device that were received and tried to be processed by the parser to create parsed records ("Device Data"). Not all uplinks return a good data result, then the parser result is "Parser returned nil". This is not a general error, but a hint that no device data could be extracted from the uplink. Often this happens with status uplinks that do not contain user data but can be processed by the parser for meta information, e.g. battery voltage, that are shown under "Device Properties".
...