The highest error severity level generated during the application session.
$maxerrlevel
A number (0 to 4). Can be reset by an application program.
| Value | Meaning |
| 0 | No error. |
| 1 | Information message. |
| 2 | Warning. |
| 3 | User error. |
| 4 | System error. |
The highest error severity level encountered to the current point in the application session.