Criteria for Create Credit Card Issuer Invoice Program

Have a quick question..

What is the criteria for the Create Credit Card Issuer Invoice Program to create an invoice?  Does it select ALL available credit card transactions in the credit card transactions table (AP_CREDIT_CARD_TRXNS_ALL) based on the parameters or does it only select credit card transactions that have been submitted on an expense report and approved by Manager?

Looking at the diagram on the Oracle Internet Expenses Implementation and Administration Guide, it is not appear that the credit card transaction is required to be submitted or approved on an expense report before the Create Credit Card Issuer Invoice program is run.  Can someone please confirm?