1.  Go to the Marked for Payment folder for the bank in question.
2.  Highlight the obligations and click the Unmark button.
3.  Post the obligations from the Unmark sub folder to the Invoice folder.
4.  Mark the obligation for pay again.

Or, if the obligation(s) is still in the New Mark for Pay folder:

1.  Highlight the obligation(s) and click on the Remove button.  The obligation(s) will return to the Invoice folder.
2.  Mark the obligation(s) to pay again.