Diagnosis
The price change for item material &V1&, sales unit &V2&, &V3& wouldresult in implicit price increases at some organization levels withtheir own prices, for which you deactivated prices previously.
You have configured the price plan type for the current price plancategory in Customizing to not allow implicit price increases, however.

System Response
The system does not change the final price for the items; instead, theprevious value is retained.

Procedure
If you want to change the prices anyway, cancel deactivation of thealternative prices first.