Values:
LINE_ITEM_CHANGE_STATE_UNSPECIFIED (0):
Sentinel value. Do not use.
LINE_ITEM_CHANGE_STATE_PENDING_APPROVAL (1):
Change is in this state when a change is
initiated and waiting for partner approval.
LINE_ITEM_CHANGE_STATE_APPROVED (2):
Change is in this state after it's approved
by the partner or auto-approved but before it
takes effect. The change can be overwritten or
cancelled depending on the new line item info
property (pending Private Offer change cannot be
cancelled and can only be overwritten by another
Private Offer).
LINE_ITEM_CHANGE_STATE_COMPLETED (3):
Change is in this state after it's been
activated.
LINE_ITEM_CHANGE_STATE_REJECTED (4):
Change is in this state if it was rejected by
the partner.
LINE_ITEM_CHANGE_STATE_ABANDONED (5):
Change is in this state if it was abandoned
by the user.
LINE_ITEM_CHANGE_STATE_ACTIVATING (6):
Change is in this state if it's currently
being provisioned downstream. The change can't
be overwritten or cancelled when it's in this
state.
