Does anybody know how to setup payment terms that are:

• End of Month (ie - regardless of the invoice date, it is payable at the end of the current month),
• 30 Days End of Month (ie, regardless of invoice date, it is payable 30 days after the end of the current month)

These are very standard payment terms - but we are struggling to find out how to set them up in in the vendor, and have been advised by a support member that this isn't possible. If that is the case, this is really poor on Concur's behalf, but I don't have the best experience with Concur support actually knowing what is and isn't possible, so thought best to ask elsewhere.