What does session_id = 0 means in ASM session tracking?

José_Ramón_Rodr 

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• Requests with session_id = 0 are typically:
  • The initial request from a client before ASM sets its session cookie.
  • Requests from clients/bots that do not accept cookies or do not process JavaScript (such as some automated bots, scrapers, or privacy-focused browsers).
  • Requests where cookies have been cleared or blocked by the client.
• ASM will only start assigning a non-zero session_id after the client has accepted the ASM cookie and/or completed the JavaScript challenge for device ID.