Hi,
Since the data of transitive attribute can not be associated with transactional data key Figures, the only reconciliation will be with the char. values.
So one can check the values in BW against source ECC table.
If I got it correctly transitive attr is ATTR of NAV ATTR so you must be having very limited chars, so deleting and reloading those chars on regular basis will ensure the reconciliation.
Thank-You.
Regards,
VB