Log messages no longer include the slot field
FortiGate-6000 and 7000 log messages no longer include information in the slot field. Instead, slot information is now always contained in the message field.
Network Security 
Network Security
NOC & SOC Management
Enterprise Networking
Business Communications
Zero Trust Access 
Cloud Security 
Hybrid Cloud Security
Cloud Native Protection
Web Application / API Protection
SAAS Security
Security Operations 
SOC Platform
Advanced Threat Protection
Endpoint Security