Duplicate Expense Report Numbers

Hi,

We've had a few instances recently where an employee has submitted two expense reports on the same day, and the system is assigning them the same number. This comes to light when we try to import into Payables, because the import won't allow the duplication.

I've tried to recreate the issue and have been unable to do so. Has anyone else run into this and discovered what's causing it?

Thanks,

Vanessa