SAP Message 53810 - Undefined attendance/absence status for personnel number &1 on &2

Diagnosis
If you deleted cluster data or other data relevant for pair formation asan exception, the retroactive accounting date is not set automatically.Due to the missing retroactive accounting information, theattendance/absence status of the employee with the personnel number &v1&as of &v2& cannot be determined within the pair formation.

System Response
Due to the missing retroactive accounting information, it is notpossible to continue processing the employee with regard to the pairformation.

Procedure
To resolve the problem, you must perform a forced retroactive accountingrun in the time evaluation (RPTIME00) for the specified personnel numberand date.