Hi alqueen,
Mahender's solution is feasible.
You can create a flow to copy field values from a product to quote line automatically.
Here's my example, maybe it can help you.
The specific steps are as follows.
- Created several custom fields that I want. Add them to a section called Product Info

- Create an automated cloud flow, select When a row is added or modified as a trigger

- Add a new step in order to get a row by ID, select Existing Product(value) as Row ID.

- Add a new step in order to update the rows you want.


-
Save and test the flow.
Finally, the result is displayed.
When I add an Existing Product in Quote Line, select save and refresh it. The field into Product Info will change.



Regards,
Yuri Ji