SAP Message WP319 - The cash register receipt to be canceled (&1) was not found in the IDoc

Diagnosis An item with transaction/event type &V3& exists in till receipt &V2&.This transaction/event type marks the till receipt as a reversal tillreceipt. The system attempted to find reference till receipt numberV1 contained in the item, so that this could be cancelled. however,no till receipt with this number exists in the IDoc. System Response The reversal till receipt is given the status "Rejected by system". Procedure Search for the till receipt to be cancelled, and cancel it manually.