# Troubleshooting Application Reach Through

Error | Probable Cause | Solution
Form incompatibility | The requested form is not supported. The local element has a later software version than the remote element and the selected form does not exist in the software version on the remote element | Upgrade elements to same software version.
Form not licensed | Some forms, such as the Fax Service Profiles form must be licensed on the element before they are available. If a form is licensed on the local element, but not licensed on the remote element, you cannot reach through to that form | License the functionality associated with the form on the remote node.
Remote element cannot be reached | A network problem is preventing the local element from connecting to the remote element. | Contact your IT Support administrator.
User does not exist on the remote element | The user information was not distributed to the remote element by SDS. | Resolve any SDS pending updates or errors on the local element.
You do not have permission to access the requested form on the remote element | The Administrator Policies form is not synchronized across all the elements in the Administrative Group. | Ensure that SDS is sharing the Administrator Policies form to all elements in the Administrative Group.
Unknown Error |  |