Created question in FIWARE Q/A platform on 29-07-2022 at 04:07
Please, ANSWER this question AT https://stackoverflow.com/questions/73161618/unable-to-send-southbound-data-in-fiware-iotagent-lwm2m

Question:
Unable to send Southbound data in Fiware IoTAgent LWM2M

Description:
When provisioning the Robot example device, the entities are getting created with position_info and position_status attributes but the update Position attribute in Orion is giving error

Device provision req:
curl --location --request POST 'localhost:4041/iot/devices' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'fiware-service: factory' \
--header 'fiware-servicepath: /robots' \
--data-raw '{
"devices": [
{
"device_id": "robot1",
"entity_type": "Robot",
"entity_name": "robot01",
"endpoint": "http://iot-sensors:3001/iot/robot",
"attributes": [

],
"lazy": [

],
"commands": [

],
"internal_attributes": {
"lwm2mResourceMapping": {
"Battery" :

,
"Message" :

,
"Position" :

}
}
}
]
}'

And Update context request:
curl --location --request POST 'http://localhost:1026/v1/updateContext' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'fiware-service: factory' \
--header 'fiware-servicepath: /robots' \
--data-raw '{
"contextElements": [
{
"type": "Robot",
"isPattern": "false",
"id": "Robot:robot1",
"attributes": [

]
}
],
"updateAction": "UPDATE"
}'

As per the documentation, This action should trigger an Execute action in the client. It should also update the "_status" field of the entity with the "PENDING" value, stating the execution is pending of the client result.
I also tried to update the Position attribute using v2 but not working:
curl --location --request PATCH
'http://localhost:1026/v2/entities/robot01/attrs/' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'fiware-service: factory' \
--header 'fiware-servicepath: /robots' \
-d '{
"Position":

}'