| Message Key | Error Message |
| INVALID_DATA_TYPE_CDE | Invalid display type code for display items, must be C,N or D |
| An attempt was made to create or update the Data type of a display column item to a value other than 'C' (character), 'N' (numeric) or 'D' (date). |
| INVALID_NUMERIC_PRECISION | Numeric precision allowed only with numeric type display items |
| An attempt was made to create or update the Numeric precision for a display item that is a character or date. Numeric precision is only allowed for display columns that are numeric type. |
| INVALID_OBJS_CODE | Invalid object code for display items |
| An attempt was made to create or update the Object name for a display column with an invalid value. The Object name must exist as a valid object in the Object Maintenance Table (GUAOBJS). |
| INVALID_QUERY_COLUMN | Query column can be entered only for character display items |
| An attempt was made to create or update the Form Item that data is queried into for a data display item that is date or numeric data type. The Form Item for query is only allowed for columns that are character type. |
| INVALID_SYS_REQ_IND | Invalid system required indicator, values must be Y or N |
| An attempt was made to create or update the System Required indicator for a display column to a value other than 'Y' (Yes) or 'N' (No). |
| MISSING_BLOCK_NAME | Missing block name for display items |
| The display column Block Name is missing and must be a valid block name in ALL_TABLES. |
| MISSING_COLUMN_NAME | Missing item name for display items |
| The display Column Name is missing and must be a valid column name in ALL_TAB_COLUMNS. |
| MISSING_OBJS_CODE | Missing object code for display items |
| The Object code is missing and must be a valid value object name in the Object Maintenance Table (GUBOBJS). |
| MISSING_SYS_REQ_IND | Missing system required indicator for display items |
| The display column System Required indicator is missing and must be 'Y' (Yes) or 'N' (No). |
| MISSING_USER_ID | Missing USER for display items |
| The display items Oracle ID is missing and must be a valid value. |
| PK_NOT_FOUND | Cannot find record using primary or unique key |
| An attempt to find a display item record was unsuccessful because the record could not be found using the primary or unique key of Object, Block and Column name. |
| P_DELETE_FAILED | Cannot delete, record does not exist |
| An attempt to delete a display item record was unsuccessful because the record does not exist. |
| P_DEL_FAILED_MASKS | Cannot delete, display masks records exist for display item |
| An attempt to delete a display item record was unsuccessful because display masks records exist for the display item on the Display Mask Column Rules Table (GORDMSK). |
| P_DEL_FAILED_SYS_REQ | Cannot delete, display item is system required |
| An attempt to delete a display columns item record was unsuccessful because the column display rule is system required. |
| P_UPD_FAILED_SYS_REQ | Cannot update, display item is system required |
| An attempt to update a display columns item was unsuccessful because the column display rule is system required. |
| RECORD_EXISTS | Cannot create, record already exists |
| An attempt to create a display columns item record was unsuccessful because the record already exists; duplicates are not allowed. |