Default value for a reference field on UI page

[Swetha M]

How to set a particular caller name as default value in Caller field(reference) on an incident form UI page.

[Ankur Bawiskar]

@Swetha M 

send the display value as well from UI action to UI page

I shared solution for this last year. check that and enhance it

Store value in reference field of ui page using client script 

If my response helped please mark it correct and close the thread so that it benefits future readers.