3816581 - Error: "No attendees may be added as no valid attendee types are available for this expense type."

The user is trying to add attendees to an entry requiring them, however, when clicking New Attendee, Advanced Search or Favorites, they receive the following message:

This happens only for one particular expense type.

When trying to add attendees to an expense entry in an expense report, the user receives a warning message saying that there are no valid attendee types for this expense type. It does not happen with other expense types. , KBA , CON-EXP-ADM-ATN , Attendees , CON-EXP-EXP , Expenses , Problem