Automation for filling blank attributes

Hi,

I'm trying to figure out how to use ADManager Plus to create some kind of automation tasks to look for users with a blank attribute and then populate it with a certain string.

For example - we're going to have new user accounts created in AD by a cloud based HR system (via our ID - Okta) - but it cannot populate the Log-on Script via this provisioning process.

I can use a report to find all users in specific OU's that have a blank Log-on Script field, but I can't figure out to then tell it to fill it in with what I need.

I need this automation to run every day, as a new starter could be created at any time.

Thanks,
Steve