To ensure the timely delivery of policy-level scans, Veracode limits the number of concurrent sandbox scans that you can run for an application. Once you exceed this limit, all sandbox scans of that application are placed in a queue and run according to the order of that queue.
To view the scan in the sandbox scan queue, click Sandbox Scan Queue
under the scan name on the Application Overview page.
The Sandbox Scan Queue appears, listing the names of the waiting scans, the users who requested the scans, and the date and time of the scan requests.