I'm assuming this is from outbound dialer?
Depending on the dialing algorithm, the system will batch up several outbound call requests into a single request, as a result we get the same session id. Session Ids are not always unique to a conversation id.
https://developer.genesys.cloud/forum/t/conversation-detail-duplicate-session-ids/13509/3
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Jan Heinonen
Contact Center Specialist
GlobalConnect AB
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