You have decided to cancel a fax job you have submitted when using ASDS Fax Manager as the faxing provider. This might include a "Fax Blast" or a "Mail Merge" fax.
You can cancel outgoing faxes by going to the FaxAdmin menu and choosing ASDS FaxManager. From here, click on "Pending Faxes" on the left. Then, right click a fax and choose "Delete All Faxes". This will remove them from the pending fax job.