| Text | Value of session parameter PD must not be "0". |
| Expl. | This error occurs if you issue one of the terminal commands of
the NATPAGE utility, and the PD parameter, which determines the number of screens to be stored with NATPAGE in the Natural system file is set to "0". |
| Actn. | Use the GLOBALS command to set the PD parameter to a value between 1 and 255. |
| Text | Multiple commands not allowed. |
| Expl. | Only one command may be entered per screen. If multiple commands are detected, no update and no command interpretation are performed. |
| Actn. | Enter only one command. |
