Rent Amount

Hi Gurus,

am updating the infotype 0581 through T-code pa30. When am updating the Rent amount it is showing the warning messages "No Automatic Updation for IT0008. Caluclation method not found" and "Eligibility amount for HRA/CLA/COA is zero for employee ".

Any one give me suggestion how to eliminate this warning messages.

Points will be awarded.

Thanks

SC