Delete fields You can delete custom fields that you created. Custom fields begin with u_. It is recommended that you remove the field from forms and lists instead of deleting it. Before you beginRole required: admin About this task You cannot delete base system fields. In addition, any missing base system fields are recreated when the instance is upgraded. Procedure Navigate to a form that contains a custom field to delete. Right-click the field label and select Configure Dictionary. Click Delete Column in the form header, and then click OK. To delete multiple custom fields, complete the following steps. Navigate to System Definition > Dictionary. Locate the custom fields to delete. For example, search for column names that start with u_. Check the boxes next to the fields to delete and select Delete from the action list below the list. A confirmation dialog opens and reminds you that this may result in deletion of related records. If there are dependencies for the selected fields, they are listed. To proceed, click Delete.