@JoshC1 This is mentioned in the Meraki documentation for security appliances.
" Traffic shaping rules will apply to traffic sent over an AutoVPN tunnel between Meraki devices. Please note that traffic shaping rules do not apply to traffic that passes over a non-Meraki VPN tunnel."
Full link here
https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/SD-WAN_and_Traffic_Shaping
Based on that wording I am not sure if that only refers to site to site or includes client VPN.
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