SAP Message >2397 - Too many partial clarifications for payment

Diagnosis
The system can store a maximum of 999 partial clarifications and resetsfor a payment. This message was issued because you
o,,Want to clarify the remaining amount of the payment. While this ispossible, there are not enough free items remaining for resetting allclarifications. This means that later you cannot take back all partialclarifications.
o,,Want to take back a partial clarification. However there are no freeitems for the reset. The action was terminated.