What should I do if my scan is in status - On Hold?
A scan that is on hold has most likely been flagged because more than 30% of the existing pages have been updated and/or changed in some way since the last scan.
This causes a red flag in the system. Issues that are On Hold are automatically and immediately sent to our support team for assistance in unblocking and restarting the scan.
If a scan stops because the amount of data changed is more than 30%, and this is expected to happen regularly, try to limit the number of pages scanned with path constraints or link exclusions. See the user guide article:
For further assistance, contact support or use the Acquia Optimize chat and help features inside the application.