Until we have a way to bulk upload a csv for group assignments, there’s a couple of workarounds.
First would be to run agent commands on the endpoint to set the group:
Second would be to set the group at the time you install the agent:
And finally, you can use the API to make changes to device settings, such as the group:
You could write a script to parse your csv file and issue the commands above. The easiest method might be to pull a list of all the devices, marry that data with your csv file so that you have the device ids to then make the group assignments, then run your script to set the group. The Awk language is perfect for something like that, as it is designed for parsing multiple lines of data and manipulating them.