Most often a User field cannot be edited due to its Read Only field type. To make a User field editable the field type must be changed from Read Only to Text Box / Default in the Data Screen Configuration window.

Open the Data Screen Configuration

  1. Open Utilities > Setup > Database
  2. Open Data Layout: Define

Data Screen Configuration

Select a User field

1. Select the Data drop-list and choose a User field

The Read Only field type is selected

Change the field type from Read Only to Text Box

1. Uncheck Read Only and check Text Box / Default

The Text Box / Default field type is selected

2. Click Save then Close