You can add our OMS system to your zendesk agent portal very easily - this allows customer service agents to never leave zendesk when searching orders for a client.
1) An Admin Role user within zendesk must select "Admin" in the bottom left of the zendesk screen ( this is a cog icon )
2) In the side navigation go to APPS > MARKETPLACE
3) Search for IFRAME and install the app "Iframe"
5) this will bring up a for of setting - details should be as follows
Title = OMS
Iframe URL = https://oms.gateway3d.com/
Inactive Icon URL = http://www.gateway3d.ebusinesssystem.net/media/favicons/oms-bw.jpg
Hover Icon URL = http://www.gateway3d.ebusinesssystem.net/media/favicons/oms.jpg
Selected Icon URL = http://www.gateway3d.ebusinesssystem.net/media/favicons/oms.jpg
Enable ZAF SDK support? = unticked
Enable role restrictions? = unticked
Then Save and OMS will be available on the left side of your Agent System under its own section