This error is caused by incorrectly formatted JSON input records in the data set.

1. Review the error details to find which shape in the data flow contains the incorrectly formatted JSON input records that caused the error.
   For more information, see Investigating data flow run failures.
2. Update the JSON formatting based on the root cause of the error.For example:

   The following sample input record contains incorrectly formatted JSON:

   <pagedata>
    <pyFaultReason>
     { "CellIdCaller": "1", "CallRecipient": "1", "CellIDRecipient": "1", "CallDirection": "1", "SubscriptionID": "S-892","TerminationCode": "1", "CallDuration": "20", "CDRMapping": {} "CallID": "1"
    </pyFaultReason>
    <pxObjClass>Embed-Error</pxObjClass>
   </pagedata>

   The following sample error message identifies the root cause of the incorrect formatting:

   Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('"' (code 34): was expecting comma to separate OBJECT entries
   at [Source: com.pega.dsm.dnode.util.ClipboardPageJsonConverter$ByteBufferInputStream7158ccb7; line: 1, column: 185]

   Based on the above examples, you can conclude that the error is caused by a missing comma between the CDRMapping and CallID properties in the JSON input record.