SAP Message BRF577 - Subexpression &2 used with expression &1 is buffered

Diagnosis Expression &v1& is not buffered but the subexpression used is buffered. Procedure Check whether the subexpression used &V2& also needs to be calculatedanew for the new calculation of expression &v1&. With subexpression &v2& , you can use either Not Buffered orInvalidate as the setting for buffering.