Hi !
My client has created a private Alteryx App in the Gallery with a selection of dates (from a date to another). He has no error when he lauches the app, and the result is correct. But when his colleague uses the app, one of the date changes with one day earlier.
For example, he chooses an action from 10/10/2016 to 21/10/2016, and in the output file, the end date is 20/10/2016 in place of 21/10/2016.
I tried the app and I don't have the problem either.
Where the problem can come from ?
Thanks a lot, I hope I was clear in my explanation 
Olivia