Introduction
The IBM System z Personal Development Tool (zPDT) product has evolved over years and this evolution has made some messages obsolete or unlikely to be displayed. Do not use any of the messages that are listed in this book to attempt to “reverse engineer” zPDT commands or functions that might no longer be present or relevant.
Many messages mention 1090, which is the IBM machine type for the initial zPDT license token. The messages can also apply to zPDT systems with 1091 tokens or other zPDT licensing methods.
Most zPDT messages have ...

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