CRM 2011 -> Crm 2013 (on premise)
I went through the upgrade without any errors.... fine.
- Lost all sections under the main tabs (Services, Marketing, Sales).
- Custom Activity Entities are missing relationship with mailbox entity (System relationship)
- Having some issues with lookup field related to lead on custom entity: it does not populate the field after selecting a lead record from the popup screen (Open Leads). - Dashboards vanished.
Is there more issues?