SAP Message 5G220 - Record already exists in the table NI Data Take-on (T5G_DTONI)

Diagnosis An entry from the old National Insurance Data Take-on table(T5G_NIDTO) cannot be migrated to the new National Insurance DataTake-on table (T5G_DTONI), as an entry with the same key alreadyexists in the new table. System Response The system rejects this entry. Procedure Check why the entry exists in both tables and make the correction inthe appropriate table.