Diagnosis
Cash concentration could not be carried out because for one of theaccounts the balancing type '0002' for cash concentration is notdefined in the master record.

Procedure
If the balancing type is missing because you want to exclude an accountor an entire hierarchy from cash concentration, maintain the balancingtype for the account again.
To prevent cash concentration you can change the validity period of thehierarchy so that the hierarchy is no longer or not yet valid today. Ifthe hierarchy does not consist of too many accounts you canalternatively set the field 'Next date' for all accounts of thishierarchy to a date in the future (for balancing type '0002').
If you do not wish to exclude an entire hierarchy but just a fewaccounts from cash concentrations, your only option is to put the dateforward to temporarily exclude these accounts from cash concentration.