Hi,
Please try this:
IF @transaction_type IN ('A','U') AND
(@Object_type = 202)
BEGIN
If EXISTS (SELECT T0.Docentry FROM OWOR T0 LEFT join RDR1 T1 on T0.[Project] = T1.[Project] INNER JOIN ORDR T2 ON T1.[DocEntry] = T2.[DocEntry]
WHERE T1.[Quantity] <> T0.[PlannedQty] and T2.[DocNum] = T0.[OriginNum] and T0.[ItemCode] = T1.[ItemCode] and T0.[Status] = 'P' and T0.[Docentry] = @list_of_cols_val_tab_del)
Begin
SET @error = -1
SET @error_message = N'Planned quantity is more than sales order quantity'
End
END
Thanks