Apex Class Access
You must ensure that the Appirio Core and PS Enterprise Apex classes are enabled on all relevant profiles.
- From Setup, click Manage Users | Profiles.
- Click the name of the Standard User profile.
- Click Apex Class Access.
- Click Edit.
- Move the Appirio Core and PS Enterprise classes to the Enabled Apex Classes section.
- Click Save.
- Repeat for all other relevant profiles.
See the Salesforce Help for more information.