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Duplicate Keys

When the batch API is executed in an active ISPF environment, it uses ISPF message services. When the transfer of relational table rows results in duplicate keys, a panel may be displayed in the TRANSFER API. Without an active ISPF environment, all messages are issued using a REXX SAY statement and the duplicate key transfer operation fails. Therefore, you should be aware of the ISPF status of the environment in which the batch API is running.