Calculation rule IN43 has a formal error (see CHECK in PE02)

Hi All,

For one of my customer i'm facing the Error "Calculation rule IN43 has a formal error (see CHECK in PE02)" under the node Retroactive accounting INDIA in payroll log for 28 emplyees for the period 1 (April 2010). Do you know the root cause for this kind of error.

Regards,

Arul