Here's my scenario and need expert advices :
I have BOM items with characteristic to capture Sq ft value for each BOM item .
Now, I would like to sum up SQ ft value of all BOM items and display Total SQ ft at header .
$SUM_PARTS is not supported in AVC.
Here's the error . any alternative way to calculate sum of all BOM items width and disapply at higher level model/BOM
EVCH_HL_AVC_SYNTAX180 $SUM_PARTS is not supported in AVC