SAP Message WRF_PPW836 - Material &1 (&2), &3: Explicit price increase not allowed

Diagnosis
The default value for the final price that the system calculated in thepricing for material &V1&, sales unit &V2& in the current organizationallevel, &V3&, is greater than the current final price.
You have configured the price plan type for the current price plancategory in Customizing to not allow explicit price increases, however.

System Response
The system replaces the default value for the final price with thecurrent final price.