Hi @Nayan20,

I have not heard of any customer purging multiple history lists at once by running multiple command instances.
I cannot say there will be no problems doing this. Some database tables will be shared in the process, so there may be some locking. There would also be an additional load on the environment, so running two instances may not be any faster than running one at a time.

The only way to know that the command has been completed is to look at the command prompt to see that it is ready to take another command or to look at the items in the history list to see if they have been purged.

@SimonMuntz Thanks for the explanation