When attempting to update the External Certificate Authority list you get the error message "No PKI items were added from PKCS#7 file  "
Article ID: 168814
SSL Visibility Appliance Software
When a user upgrades the SSL Visibility appliance they will also often update the External Certificate Authorities list with a .p7b file they download from the Blue Coat SSL Visibility download page. Users may encounter the following error if they do this.
This error is due to the fact that the External Certificate Authority list already had the CAs that are in the update. You can see this by reviewing the system log messages as seen below. Note the duplicate objects.
There is no need to upload the .p7b file, as it is already current.