3828998 - How do I add a new Vendor or Supplier to the Vendor List for an Expense Report?

An employee is attempting to add an Expense to their report, but the needed Vendor is not listed in the dropdown of available Vendors. How can we add the correct Vendor for selection?

The customer needs a Vendor or Supplier added to their vendor list in order to submit an expense report , KBA , CON-EXP-EXP , Expenses , CON-EXP-ADM-LIS , List Management , Problem