what's the easiest way to copy items sublist to another record items sublist?

No, you need to iterate over all the items in the list.

100%?

You can copy a complete transaction if that is what you need.

@Watz I want to copy items sublist from opportunity to the sales order

Why not transform the opportunity into a sales order then.

sorry from so to opp

Then I don't know of a quick-fix to do that. I'd loop through all the lines on the sales order and then replace the lines on the opp. Note that the opp might not have all the same columns as the sales order has. And this would be dependant on the execution context. If it was a M/R-script I would perform a search on the SO-lines instead of loading the record.

thanks

I'd say you need to get it field by field.

Edit: didn’t read properly, removed my comments about transform :)

With NFT, you get sublist line objects presented as a collection making it pretty easy code to create the same lines on another record.