I have a continuous subform (frmCRMPartsRF) on main form (frmCRMEditRF). On the continuous subform I have a txtbox (txtTagRecord)that I wish to total in the from footer (txtTotalSaleAll)' I have tried =SUM([txtTagTotal]) and =SUM(Sum([frmCRMPartsRF!txtTagRecord]) but get an ERROR message. What am I doing wrong?