Cisco port forwarding

I don't see anything that sticks out. Have you insured the actual box is listening on those requested ports?

I scanned from the internet to check the ports and they are showing closed.

I meant the actual internal box. Is it listening on the ports?

Yes, there is a AS400 programmer that is asking for these ports open on the firewall and he has tried to access

Try

no access-list outside_access_in extended permit tcp any object-group SFTP interface outside object-group SFTP
access-list outside_access_in extended permit tcp any interface outside object-group SFTP
clear xlate

Also remember the SFTP software might be running on random ports for response traffic, check with the software vendor.

Pete

I have verified that the box is listening on all needed ports.
I have also made the line changes suggested by Pete Long.
Still can get through on those ports.

Since this is an ASA, I am assuming you are using interface overloading (using the single "outside interface" ip address to NAT to the inside)?

If so, you cannot port forward 22 on the ASA.  As this is a management port, it is reserved on all IP's for the ASA itself (it is stupid, I understand that, but that is the way it works on the ASA).

This is most likely the cause of your issue.  Are you just trying to work on the SSH/SFTP port or are you unable to reach the mail port (990) as well?