ID = zero

When importing structure data, member ID is optional if a member name is included and the dimension does not require a zero-member ID. For starter databases, the DBSetup Wizard creates zero-member IDs for those dimensions. For shell databases, you must map the member ID for dimensions requiring a zero-member ID.

These dimensions require a zero-member ID:

Dimension	Required member
Period	Member ID 0= P0 Opening
Currency	Member ID 0 = Local
Rate	Member ID 0 = Historical
Exchange Rate Set	Member ID 0 = Untranslated
Category dimensions(not Other type dimensions)	Member ID 0 = No Member

Zero-member ID is allowed, but not required, in all other dimensions (Unit, Schedule, Year, Version, Other).

The P0 member for the Period dimension cannot be imported.