DWW1712E An I/O error occurred after an add request to the dddd data set. The key is key. VSAM return codes are R15=cc, FDBK=nn.

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An attempt to add a record to the data set dddd failed. cc is the return code in register 15, and nn is the value of the feedback field in the request parameter list (RPL).

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Batch backout processing terminates.

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For an explanation of the codes in this message, see z/OS® DFSMS Macro Instructions for Data Sets, chapter Record Management Return and Reason Codes.