Hi,
Try:
IF @transaction_type = 'U' AND @object_type = '97'
and exists(select t0.SlpCode from OOPR T0 where T0.SlpCode != "-Main Sales Employee-"
and T0.UserSign != 6)
BEGIN
SET @error = 1
SET @error_message = N'Authorisation required'
END
Thanks,
Gordon