There are 2 sets of rules That Exym uses to check services for errors:
1/ "Activities Needing Attention" page is for all activities that cannot be invoiced (once they enter the billing phase) due to missing data; this set of rules runs as soon activity is created and the completed date (Date of Service) is entered on the activity. E.g. if note not yet approved, this is an activity needing attention.
2/ Activities that have been passed through the billing phase and do not pass rules, will end up on the "Claims With Problems Preventing Invoicing" - this set of rules are run at the billing/invoicing process step. If note does not pass these rules it ends up in 'Claims with Problems'... the Note status still = Approved in Exym.