How to show RITM after submitting a service request instead of REQ ?

[Akhil Pendem]

We've built 3 customer service portals and each portal has it's own separated pages.
One of the portals has the following requirement:
"After submitting a service request, show RITM instead of REQ ticket" ( we do not generate multiple RITMs for a REQ)

We've followed the following thread from Community:
https://community.servicenow.com/community?id=community_question&sys_id=f0414fe5db98dbc01dcaf3231f96...

But the above solution is not working.
After clicking on "Submit Request", the page is frozen and showing the message "submitting ..." under "Submit" button, but a request is created in the instance.

Thank you in advance
- Akhil Pendem

[Upender Kumar]

When order a catalog item the page redirect to com.glideapp.servicecatalog_checkout_view.do UI Page. You can modify this page.

Thanks