To be able to Dismiss a Multiple Sale the following criteria must be met:
You must have the Dismiss Multiple Sale permission in your User Settings.
The Multiple Sale must have been created by FastBound.
The Multiple Sale cannot be already Transmitted.
From the Pending Multiple Sale list page
Select the Multiple Sale that you want to Dismiss
Scroll to the bottom and click the Dismiss button
On the confirmation page click the Dismiss Multiple Sale Report button