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Some key values of a task are calculated as follows:

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Start dates of a task is calculated as follows:

• If a "Start Date" Custom field is specified in Administration, its value of custom field(Start Date) will be used.
• If above is not true, and if task 'Status' is 'In Progress', then it considers the date when it was converted from 'To Do' to 'In Progress' as the as start date.
• If above not true, then it uses 'Created Date' as start date.
• If none of the above is true, then uses Today's date as start date.

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End Date of a task is calculated as follows:

• If a "End Date" Custom field is specified in Administration, its value of custom field(End Date) will be used.
• If above is not true,  if and if 'Resolution' state is 'Resolved', then considers resolved date it considers Resolved Date as end date.
• If above not true, then it uses last updated, and due dates date based on these conditions:
  • if updated date > due date date, then updated date is set as end date.
  • if updated date < due date date, then due date date is set as end date.

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