When I close the project but task in the project still have etc.
In PPM have job for clear ETC to 0 in each task and update % complete of project to 100%?
Out of the box there is no job. It has to be done manually.
You can create a process for that.
You can also create an idea in the Community ideation for such an enhancement.
It's work. Thanks for your answer.
Also, you can check this (in case this is for one project only) -
Delete all ETC in all tasks in order
Retrieving data ...