| Saved Value | Displayed Value | Meaning |
|---|---|---|
| OB | Obsolete | The information is no longer used. |
| PL | Pre-Loaded | All supplied values will have this set |
| UC | User Defined Column | The user created and controls the information and it will not be overwritten when you receive a software update. See USER DEFINED COLUMN for more information. |
| UF | User Defined Formula | A read-only derived expression. See USER_FORMULA_COLUMN for usage and samples |
X_COLUMN_USAGE is a fixed lexicon with the following values:
