Users will receive email alerts from Asset Bank only if they have the 'System alerts' checkbox checked in their user profile.
To change this for a particular user, you need to be an admin user. Go to Admin > Users (find the user using the search tools), then click on .
You should now ensure the tick box for 'System alerts' has been selected (see figure 1) and click save.
Figure 1 - Receives alerts
If the user is still not receiving email notifications to alert them that assets are awaiting approval then this may be because they are an admin user and a Group has been set up with permissions to approve downloads.
If you have set up a Group to approve downloads and this group contains at least one user who has ‘receives alerts’ set to true then it Asset Bank stops emailing the admin users (as the assumption is that you have set up a group specifically, so admin users may not want to get these alerts).
To check this go to each group via Admin > Groups > [folders]
If any group has 'Approve upload' or 'Approve downloads' set (see figure 2), then the members of this Group are the people who will receive alerts and approve these assets, rather than administrators.
Figure 2 - Download & upload permissions
If you want administrators to also receive alerts then you can get add the relevant email addresses directly to the relevant email template.
For example, to ensure that an admin user with email address email@example.com receives alerts as well as users in an 'approvers' Group:
Go to Admin->Content->Email Templates
Click 'edit' next to the template called 'admin alert approvals'
Add 'firstname.lastname@example.org' to the 'To' field, i,e. so it looks like this: