Sp transaction notification On purchase Order -help

Question

Hi ,
I need to enter owner Name in every purchase order , condition to set if its is blank Po cannot be able to Add.
I am trying to execute the Sp notification as following , but cannot able to the restrict the Owner name . I am able to create the purchase order without any notification.
{IF @object_type = N'20' AND ( @transaction_type = N'A' OR @transaction_type = N'U')
BEGIN
if exists (SELECT OwnerCode from OINV where DocEntry=@list_of_cols_val_tab_del and (OwnerCode is null or OwnerCode=''))
BEGIN
SELECT @Error = 2
SELECT @error_message = 'OwnerCode should not be BlAnk'
END
END }

Answer 1

Hi,
Hendry is right.
Try:
IF @object_type = '22' AND @transaction_type in ('A','U')
BEGIN
IF exists (SELECT DocEntry from OPOR where DocEntry=@list_of_cols_val_tab_del and (OwnerCode is null or OwnerCode=''))
BEGIN
SELECT @Error = 22
SELECT @error_message = 'OwnerCode should not be BlAnk'
END
END
Thanks,
Gordon