Hi,
I think you have Link2Points installed, that will allow you pay the vendor with the credit card and it shows up immediately on the vendor's account as being paid.

Link2Points will create a transfer invoice and move it to the credit card vender (Chase or AMEX, etc), and show that the invoice has been paid in the vendors account by the credit card and shows the transferred invoice as open, under the credit card vendor, until you pay the credit card vendor.

This is done with the Link2Points batch process, but simply post the batch and the transaction is completed just as if you did a check run.

Best,
Brian