Adding estimate after Sprint Starts affects the Reports ?

[Smitha Joseph]

I have come across scenarios where the estimates were added to every story in the sprint after hitting the Start sprint which resulted in flat guideline in Sprint Report.

Would a similar guideline be generated if some stories had estimate, and some didn't have estimates after hitting starting the sprint?

Should all stories have estimates prior to start of sprint to avoid this?

[Venkatesh G]

Yes @Smitha Joseph . Before starting of the sprint itself make sure all the necessary stories, subtask & Tasks are added to sprint with Estimates, Story points and Due Date field. 

This would help in tracking of those tickets. 

If estimates are changed after Sprint Started, then it would affect Burndown chart

If Story Points are changed after Sprint Started, then it would affect committed story points which obviously depicts that Sprint Planning was flop and that didnt happen as how it has to be.

If due dates are changed, then in that case it says dev team has not estimated and planned the ticket.