Error in displaying invoice document

Dear all,

The miro document (delivery cost log invoiced document) which are being created against vendor subjected to <b>withholding tax</b> the error message "<b>enter rate INR/rate type M for 00.00.0000 in the system setting</b>" is showing while user want to display the follow on document in transaction code <b>MIR4</b> (display invoice document) or from the document in purchase order history.but while i posted that invoice document i have simulated the FI document without error and posted it.Could anyone explain the cause of this error and possible solution.

Regards,

Atanu