You can add attributes to an object when you want to provide more information about that object.
You can use an abbreviation of your organization as a prefix to any attribute name, for example, ACME_MEMOFIELD. This practice prevents accidentally choosing a database reserved word and prevents conflicts with new standard names in an upgrade. You cannot add an attribute that is named rowstamp, tenantid, maxsetupflag, or HASLD to an object.
New attributes are accessible in the user interface by first adding them to the respective application by using the Application Designer function. You can then add the attributes to the respective application in the Application Designer application to make the attributes accessible on the user interface.