Here is downlink queued message:
Successfully received by end node:
So I am wondering about way to understand on server side that downlink message delivered.
chirpstack-application-serverstores information about delivered downlinks in their databases somehow?
Should I modify source code of end node (LoRaMac-node based)?
I need it to send settings for end node just once with first downlink after server synced with node by using external micro service we developed.