Hi,
Recently we added Social Pane to one of our custom entity form in CRM 2013. It was only showing Notes and Activities tab. Posts tab was missing.
To get the Posts tab we need to activate Post for that custom entity, which can be done through Post Configurations page.
However the Post Configuration area was missing in our CRM’s site map navigation.
To add it back, we need to follow the steps mentioned this post
http://www.crmcodex.com/2013/11/mscrm-2013-missing-posts-tab-on-the-new-activity-feeds/
i.e. to add the following SubArea
<SubArea Id=”nav_administration” ResourceId=”Homepage_Administration” DescriptionResourceId=”Administration_SubArea_Description” Icon=”/_imgs/ico_18_administration.gif” Url=”/tools/Admin/admin.aspx” AvailableOffline=”false” />
<SubArea Id=”nav_social” ResourceId=”Social_SubArea_Title” DescriptionResourceId=”Social_SubArea_Description” Icon=”/_imgs/area/16_social.png” Url=”/tools/social/social_area.aspx” AvailableOffline=”false” />
<SubArea Id=”msdyn_postconfig” ResourceId=”Activity_Feed_Configuration” Entity=”msdyn_postconfig” />
Add Email and Post Configuration to SiteMap
https://technet.microsoft.com/en-us/library/dn486920%28v=crm.6%29.aspx
Hope it helps..