Hi @hsieht , yes you can. You’ll get a license warning in the dashboard but you can add the device and configure before applying the license. Not sure of how many week and days you get but the dashboard will tell you.
if you have a Cisco sales number Meraki support can extend the license grace period whilst you wait for the license to arrive
Darren OConnor | email@example.com https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.