Hi,
I have a problem with the MX API when creating a VLAN.
When I create a VLAN that should not respond to DHCP requests, it is created with a DHCP server, even if the dhcpHandling parameter is correctly set.
The problem can be reproduced at https://developer.cisco.com/meraki/api-v1/create-network-appliance-vlan/
To work around this, you need to do it in 2 steps, the second being to modify the VLAN to set the dhcpHandling parameter to "Do not respond to DHCP requests".