Modvat Capturing

Dear Gurus,

Whenever my client is processing the posting of vendor excise invoice, then the message no: F5702 containing the following message:

A BALANCE HAS OCCURED IN TRANSACTION CURRENCY"INR" WITH THE FOLLOWING DETAILS: EXCHANGE RATE-00, AMOUNT-22.00(-), CURRENCY- INR.

pLEASE HELP IN URGENT BASIS.