There are JDBC drivers available for all commonly-used databases and Excel and CSV files. Therefore, you can connect to a spreadsheet containing a list of items you want to be available in a custom field.

  1. First, add the spreadsheet as a connection in setting up an external database connection.

  2. Create a scripted field.

  3. Give the field an appropriate name and description then enter the following intoRetrieval/Validation SQL:

    select id, "First Name" || ' - ' || "Experience Level" from devs
      where id = ?
    CODE
  4. Enter the following intoSearch SQL:

    select id, "First Name" from devs
      where "First Name" like ? || '%'
    CODE

    csv field picker
    When applied to an issue context, the results display as a drop-down:
    csv pick user