Inboxes table - Conversations segments are counted for an inbox if they started the period in that inbox.
FAQ
Only conversation segments with activity in the 7 days prior to the report are eligible to be considered Open at start. Therefore, the number you see in analytics may not match the Open counters visible in Front’s main application if you have old, untouched conversations in your inbox.
When a teammate filter is applied to the Conversations report, conversations will be counted if the teammate took any action (sent a message, commented, etc.) over the course of the conversation.