Hi All, How can we use Liveorder model data in view in SC 20.2? Any one have any idea on that?

No. Use the cart component instead

Okay..then how to use OrderHistory Model?

The order history model is not available either. We have some support for order history customisation via the ability to change the configurable columns, but generally speaking no code-level changes are permitted

i want to get the order items based on the internalid's..then how can we acheive that?

Which internal IDs? You mean the internal ID of an order?

yes

Good question. I'm not sure I have a good answer. You may have to build a full service that runs in parallel to the existing one

Can we extend the orderhistory model ?

Not in an extension, no

okay

I would take a look at some of the cart events https://system.netsuite.com/help/helpcenter/en_US/APIs/SuiteCommerce/Extensibility/Frontend/Cart.html#events

You can create a proxy service by extending the orderhistory model and using that from frontend instead.

Can we use core module as a dependency ??

Not in an extension, no