Overview:
When creating a new Event, an unexpected page layout appears for the affected user.
Root Cause:
There is no Record Type access to or none of the assigned Record Types are set to default on the EM_Event_Team_Member_vod object on the profile level.
When there is no default record type set on the profile level, the Page Layout Engine displays the page layouts randomly.
Solution:
On the EM_Event_Team_Member_vod object, grant Record Type access to the Event_Team_Member_vod Record Type and set it as default on the profile level.
After making the changes, clear the Veeva Cache and refresh the Event metadata and Event Rules.
Related Documentation:
CRM Help Documentation: Defining Page Layouts