Hi Manasa,

I think this is what you want to achieve:

For this I did the following:

the field attribute was set as ref_auto_completer=AJAXReferenceCompleter,ref_ac_columns_search=true,ref_contributions=user_show_incidents

and in default value make sure that Dynamic Default is not checked.

Please mark as helpful/correct if this helps! 🙂

Thanks,

DR