SAP Message /IBS/RB554 - Reclassification: Update target RBD account &1 &2

Diagnosis
Reclassification: Update the target RBD account with account number ' 'in RBD area ' '.
The key date could have changed as a result of the reclassification. Youmay need to assign new source system contracts to the RBD account ' ' .
Planned records may also have been removed from RBD account ' ' as aresult of the reclassification. These can only be regenerated byupdating the account.