Viewing all possible columns of a ServiceNow table can be useful when defining a ServiceNow connection. By retrieving the columns of a table you can see which data you can use in the mapping table you are creating.
To be able to view the columns of a ServiceNow table you need to have read access to at least the ServiceNow tables sys_db_object, sys_dictionary, and sys_glide, and in addition to that to the table of which you want to view the columns, including referenced tables.
If you have not previously activated the option to remember your credentials since opening the model package, a window appears first, asking for your credentials for ServiceNow. Enter your credentials and click OK.
If you want Enterprise Studio to remember your credentials the next time, select the Remember my credentials check box.
Next, a connection is made with ServiceNow, and the columns of the selected table are retrieved. The result is shown in the ServiceNow table columns window.
Overview of available table columns in a ServiceNow table