SAP Message RY553 - Volatility values &1, &2, &2 for &4 are incompatible

Diagnosis
The volatilities &1 &2 &3 for the &4 do not match. One of the volatiliti
es is significantly different to the others. As a result, the determinedcorrelations could be both greater than 1 or smaller than -1.

Procedure
Check the volatilities.